Honestly, unless you get a reseller(like the one lady who kept asking me about my copy of Alundra I found)who goes into that store or someone fairly knowledgable about games and their rarity, the games may well sit there for all of eternity.
Worst part is though, when you have multi disc games which are hard to find/rare and someone buys up ONE disc out of the 3-4, leaving you to scramble through the bin over and over hoping you just missed that last disc.
Take, for example, that I found disc ONE of the Arc The Lad Collection out of FIVE discs. I never found ANY other discs from that collection, so I simply put disc one back and forgot about it. I also found Wing Commander IV, but only found discs 1,2 and 4 of it I believe, which means I have a game that I'd never be able to finish.
Sick part is, I had the Wing Commander games before, but I never kept them and I regret that now.
I have found multiple copies of other games before, such as Darkstalkers 3, for $5 @ a local shop which is also clearing out their PS1 titles. However, since it doesn't appeal to me, I never bought any of them.
So, sometimes when you find a 'zomg rare' game, you better check to make sure it's actually complete, since GS is infamous for seperating the discs and trying to charge their price PER disc(as they were gonna try with the Wing Commander game I found).
Best of luck yuffie and if ya stumble upon a copy of Intelligent Qube, give me a good price on it? LOL