[quote name='refusedchaos']ugh i got a feeling that they are eyeing the Xenosaga games too[/QUOTE]
Eh -- I wouldn't hold your breath. The Fatal Frame series was one thing, but reprints for GQD seem to be isolated to Atlus distributed titles (Yes, NIS games are distributed by Atlus, read the fineprint on the back). I don't foresee Namco allowing its games to get reprints, especially since some of its games were released post its merger with Bandai (this may or may not create some legal/licensing hurdles).
Though if GQD were to reprint any games, it should look to reprinting Tales of Abyss for the PS2; now there's a solid RPG that was really under-printed. I have it and would certainly like more gamers to enjoy that game.
Re: the investment thing -- I certainly get it. Then again, all prices are probably going to fall a bit if Sony can ever get PS2 games up for sale on its PSN (aside from PS1 games). Then again, people like having the tangible games, so may be not that much.
On a related note, reprints can in some cases be almost impossible to tell from the original print. Not every new PS2 game was released with that white sticker on the top. I don't think Fatal Frame 3 ever had one and neither did the Ar Tonelico games. So in other words, aside from the memory card holder (which also went by the wayside with recent titles), it might be really hard to tell what exactly is a reprint.