That's just one article, there are plenty of games that go for a good amount of money at the moment, have a look here,
http://www.racketboy.com/retro/nint...-most-valuable-super-nintendo-snes-games.html,
Think how much these games will be worth in 30/40/50 years time, there are plenty of games out there that are worth money, I'm not saying that what the original poster has purchased will be in the same category but at the same time it would be silly to discount video games as non collectable items that only depreciate in value becuase that it is certainly not always the case.
There is a big collectors market out there and tbh it's only really just starting to take off becuase video games are still relatively new, we may be seeing old fashioned tinker toys on the antiques road show now but come another 50 years and I can guarantee you that we're start seeing video games and hardware on there @ silly prices.