I guess I should have said "long term investors". A few months to a year down the line, sure you could probably at least double or triple your "investment", but these aren't games that are suddenly going to be worth hundreds in several years.
The only games that continue to rise in value past a certain plateau, are those which never had a digital release (retro games), those that didn't have a fanbase when the game originally came out and now want said game (EarthBound), or those that had tiny LE print numbers (Neptunia Rebirth 1).
I dunno about that. If more people get to know about LRG and are interested in getting a complete collection (like myself recently) the prices will continue to rise. We'll see