My SNES and Earthbound

My Super Famicom 20 in 1 multicart from Korea.

http://www.nesworld.com/snes-nes2...

^ It's a bit rare for a pirate cart, it houses NES games to be played on SNES. It uses the Super Pang Bros. (Super Buster Bros.) sounds iicr. I've still got one CIB, and there were so many people in the past asking if they could buy it from me, and the answer is always "no".

Same goes with my NES Star Keeper.  

I'm collecting Game Boy games. I thought my childhod GB carts were priceless, until I noticed one day that I had swapped some of those childhood carts out for better-condition duplicates. Since my memory is the thing that puts extra value on those carts, and that memory failed me when I switched them out, no harm done! I need my memory to let go of my childhood Harvest Moon and Earthbound carts so that I can put the cash into my Game Boy collection! Also:
  That... that prototype says USA on it. You have... Triumph. For Game Boy. How much do you want for it. I'll pay anything.

I kid, but I'm super jelly. Wow.

Nothing. I would sell everything for the right price. Honestly, I'd look forward to getting rid of about 1/2 of my collection if someone was willing to pay a bulk retail price (which I know is not realistic). There are a few things I'd miss, but the older I get I am less attached to personal belongings.

yes,thats the unreleased US version of Castle Quest


 

I own a triumph prototype too.  Mine is a full year before yours though.  1990

https://ibb.co/i490AF...

Nah I'd pretty much sell anything for the right price.

Ah yes, I found an Assemblergames thread with both of you in it, talking about these prototypes. At least I think it's you, it's adler_0 and someone showing the same photos as Intangir. You guys are lucky. Ok, no more thread hijacking.

I have many items that I'd be uncomfortable selling. However, in the right context I've sold these sorts of things in the past to buy other items.

one last hijacking 

yeah,thats me 
Intangir(nintendoage) = Sporefrog08(assemblergames)

the reason why I posted Triumph here in the "not for sale" thread is not the rom itself,its the original Hudson cartridge with the original eprom used by Hudson.
its origin is verified(I posted its history at assembler in 2 threads) so this is not just a random eprom used on a random cartridge without any evidence of origin like many other protos,this one comes directly from Hudson and thats the reason why I would never give this piece of Hudson Soft videogame history away.
its not the only known Triumph proto out there but its the only known verified original Triumph proto.
the Triumph poster/flyer is also the real deal and its also the only known remaining (original) copy in existence.this was the pre-owner:
http://www.video-game-ephemera.com/046.htm

thread hijacking end 
 

Same for me.  I don't own anything truly priceless.
 

Honestly, I wouldn't sell most of my collection. My sister broke our NES and threw out all the games we had in the early 2000s when she moved out, so those are gone forever. I have a lot of sentimental value attached to all of the systems/games I bought when they were current, aside from the last/current generation (PS3, 360, XBone, PS4, WiiU). I could part with pretty much anything I bought secondhand, but for the most part anything I bought new prior to 2012 I would not sell.

Also I would not sell any of my Zelda games or any games that have a lot of time put into their save files, like my 3DS games.

I don't think many people here are truly considering the gravity of the phrase "any price". I think some might be thinking more along the lines of "what is absolutely not for sale". A friend of mine in Vancouver has 2 complete Earthbound big boxes that we were talking about one time, and I told him that someone here had a WTB thread up for a copy, and that he could probably make some pretty nice cash (considering what this member was willing to pay and considering the US to Canadian exchange rate) by selling one of them. He immediately shot it down telling me that neither copy is for sale at all and that we wasn't even entertaining offers. He was practically interrupting me to shoot the idea of selling down faster. 
He didn't even let me get half the question out before slamming the door shut on the idea, so I decided to mess with him a bit   I asked once more "so, abso-friggin-lutely not for sale?"
"Nope, absolutely not."
"Ok, no problem, I won't mention it to him.....someone's going to make some good cash though, this guy is offering $3,500 US for a complete big box with mint scratch n' sniff card...that's like 5 grand CAD! I know you mentioned one of yours included a brand new scratch n' sniff.. but it's all good man he'll find a seller...." 

You can guess what happened next lol. Suddenly the priceless game had a price  

Got a nice shot in the arm when he found out I was just messing with him lol
 

This. 

The only exception being my original front loader. I've had that thing for almost thirty years and it's still my primary system. 

The memories are what has value to me. I collect this crap because I like it, but if someone with more dollars than sense offered me many times the going value, I'd part with anything I own. Even if they stipulated I could never buy another one, I'd still sell - I don't need to look at or have things to remember what made them special in the first place.

Besides, if a friend "gave" me whatever I was missing after I overpaid them to buy me dinner one night, I didn't "buy" back what I sold  

All nostalgic items here. Just the ones I can think of off of the top of my head. I'm hugely sentimental...

My original 3DO FZ-1
My original SNES
My brother's original SNES
My brother's FF3 US
My brother's original Final Fantasy (NES)
My brother's original Star Control (Genesis)
My original Toh Shin Den (Import) PSX
My original black label Final Fantasy Tactics PSX

My dragon quest sentinel of the starry skies... only because I have like 885 hours in that cart, my dad's copy of silent service for the nes.... anything else is gone if the price is right!

Signed picture by David Prowse

my CIB Earthbound.

1) It's one of my favorites. 2)I promised my friend that sold it to me for $15 that I wouldn't.

My Mario Kart Wii game. Got it for my 8th birthday in 2008. Put hundreds of hours into it, even played a bit 'hardcore' so to speak when I was 10-12.
Not that good back at the game back then, but I enjoyed it haha.
My favorite game of all time, so it's not going anywhere.

I don't have strong sentiments for any games or gaming related merchandise in my collection. The game I have the best memories playing is Super Smash Bros. Melee, and if someone offered to buy it from me for double its current market value then I'd sell it to that person in an instant. After all, I'd still have my memory card with my save file, and I'd come across another copy eventually.

its always the combination of sentiments AND rarity which matters imo.
I really like my Castlevania Symphony of the Night,because I bought it myself in 1997 and I am still playing it.my favorite Castlevania game and I have countless good memories with this game.I would still instantly sell it if someone would offer me a nice amount because I know that I can rebuy it immediately(ebay,private,forum,etc...).
I also have an original japanese Symphony of the Night B2 promo poster,which I cannot buy immediatley after selling so this would be a different story.for the right amount,I think I would still sell,because its not impossible to get it again,its just damn difficult.
and then there are personal favorite items which are "definitely" impossible to find again...these are imo the items,which deserve the not-for-sale.