Got this today after watching a video yesterday and watching one on ebay going for over 400. Can someone elaborate on why this is so expensive?

Wait, it's that expensive? What the f--k? Hello Kitty?
Good job on the find, then.  

I believe the conclusion was that auction was shill bids.

Yeah but a separate auction for just the game and one for just the box are up now and they total around 80 and they still have time to go, not to mention the manual is not included in either auction.

Are they actually being bid on though?

Last night one had 57 bids and it was at 406 before i went to bed...I missed the ending of it... Today it seems as if 5 more have been posted and they are going for around 350 now

I'd say legit prices on that would be closer to the $100 mark. See if the one that's up for $300ish right now moves.

Yeah I think it's more around 150 myself. But I was shocked at that 400 dollar auction.

Update* As of right now the disc is at 51 with 4 shipping and the box is at 41. These auctions have 2 and 4 days to go.