There will probably be a few Wii games that will shoot up in price, but it won't be like the Gamecube. Gamecube games shot up in price because of supply and demand. Every Gamecube game can be played on the Wii. The Wii was a lot more popular system than the Gamecube. It's the Wii's popularity that caused Gamecube games to skyrocket in price. That is about 100m customers who are looking for old Gamecube games that are not being made anymore.