First, I think the polls are a little unnecessary and a bit polarizing, too black and white. I get the sentiment of the thread, but I think the overwhelming majority of the people here kind of fall into a shade of grey in between the two options on most of these. As responses have already shown, there's a lot of factors at play into how people approach their collecting. What do you collect, where do you live, just how easy/hard is it to find what you're looking for without clicking a BIN or walking into a game store are all factors that will color the answers. Financial stability and responsibility is a factor as well. If you're doing the paycheck to paycheck thing, you might be in a spot where you can spend the money now, maybe not getting the best deal, but couldn't in a week or two even if the item showed up significantly cheaper. That's less not taking things slow and steady, but more seizing a window. I'm just nitpicking here, but something about the poll options bugs me.
But as I said, I get the sentiment of the thread. For me, I live in an area where I've got plenty of non-ebay/retail options. Garage sales and flea markets are plentiful for about 9 months out of the year for me, and I'm out almost every weekend hunting for deals. I also don't have a particular strong focus on what I collect, so that makes finding something I'm interested in significantly easier than somebody looking for something very specific, be it stuff for a particular console or just a list of specific games. While the 8 and 16 bit stuff is what I consider my wheelhouse, I'll take an interested look at pretty much anything video game related I come across, and if whatever that is clears the fairly arbitrary coolness factor bar in my head and I like the price, I'll pick it up. It's not often I pay retail for games, I don't own a current gen console as of yet (though E3 has me considering a Wii-U) and there's really nothing from the last gen that I'm desperate enough to play to walk into a store and buy a new copy, so actual new games are a non-factor for me. Retro stuff, there's been a handful of occasions in the past few years I've wanted something specific bad enough right now to drop current market value at a store (Super Metroid leaps to mind as a fairly recent example, really wanted a copy, didn't want to wait for a random find any longer, paid full sticker price with a smile), but for the most part I'm pretty content to wait and see what comes my way. I have a want list, sure, but there's usually not anything on it that I feel I absolutely must have immediately, so I'm content to bide my time.
Though another factor here is what makes the collecting hobby fun for you. I'm sure there's plenty of people here who like having the games, whether it's to play them or just to have a cool looking display, and that's the hook for them. If that's what makes you enjoy it, then I say more power to you, and I don't think that crowd really cares if they decide they want something and click a BIN five minutes later. I like having, displaying, and playing my games a lot too, but for me the actual hunting process is something I really, really enjoy. As I said above, I'm out almost every weekend, and it's something I look forward to doing every week. I'll catch myself daydreaming about it sometimes, wondering if this is the week where I'll come across some jaw-droppingly good deal on something I've been wanting to have for years. And even when the finds aren't particularly amazing (which is usually the case), I still like the act of actually running around and trying to find stuff, talking with the sellers, haggling, and when I do get something at a great price I think it's a great feeling. Hell, I almost enjoy trying to get the stuff more than I actually like having it (almost ). But at the end of the day, if I come across a copy of Little Sampson for $5 and somebody else clicks a BIN for $700, once the transaction is done, we're both at the same spot ultimately, neither copy is any better or worse than the other. We've all got our own ways of going about this, but as long as you're happy with the end result, that's the important thing. There really isn't a wrong way to do it if it puts a smile on your face.