Any predictions for xbox & PS2 game that will skyrocket in value in years to come?

[nesfan1]

I just looked up Ar Tonelico on Amazon and that game shot up in price. I could swear I looked it up just a few months ago and its used price was around $15. Now Amazon lists it at $50. Ar Tonelico II is a good deal cheaper but it will probably go up in price too.

I predict any game from Working Designs will go up in price a few years from now.

[Vexer1]

Here's some lists:

 

http://blog.pricecharting.com/2009/03/most-rare-valuable-xbox-games.html

http://blog.pricecharting.com/2009/08/most-expensive-playstation-2-game.html

http://www.racketboy.com/retro/sony/ps2/the-rarest-and-most-valuable-ps2-games

http://www.officialplaystationmagazine.co.uk/2013/08/28/the-most-expensive-playstation-games-around-ps1-2-3-games-that-cost-as-much-as-a-ps4/

http://iansgp.blogspot.com/2013/12/top-eleven-most-expensive-ps2-games.html