Um... I'd say the reverse, if it were just that people suddenly decide they want what they can no longer find, every out of print game would go for big bucks. I think it is more that in these specific cases, the supply outweighs the demand. Small shipments of games that retain some demand moving forward.
@Zero But if nobody wanted the game when it's in print, why would the demand increase when it's out of print? The supply didn't go down. Metroid Prime Trilogy was marked down to $20 because people weren't buying them. I guess maybe it was the distribution; perhaps these people who pay upwards of $100 never found the game in stores in their city, whereas other cities no one wanted to buy the game?
I *WOULD* use this link, but I scrolled through the first 5 pages and all I saw was crap for the Wii U. If there was some awesome 3DS stuff, I'd consider it, but I ain't droppin' dime on no Wii U junk! PEACE.
@Mop it up When was the Trilogy marked down to $20!? I remember it basically selling out instantly and being difficult to find thereafter. And this kind of thing happens a lot (especially with smaller RPGs) where they print out just... enough... to sell out and have people wanting more, but not enough to justify a reprint, so they just leave it at that.
@GameDadGrant You... did you see the right-side menus?! You have to select your platform!
@Zero A few months after it came out. I saw it at Best Buy and Target in their bargain bins of other games they couldn't sell. Since it was in December I had passed on it to buy gifts, but if I'd known everyone would suddenly go crazy for it later on then I would have bought it. My biggest missed deal... And over the last few years I've heard of people finding new copies in the bargain bins of places like Wal*Mart, K-Mart and Sears, in the bin of other games that didn't sell and had been sitting around in the warehouse.