If your are looking for cheap prices on new and used Wii games, these places have great deals and are reliable:

Amazon's Wii Games Store is a store on Amazon with great deals on Wii games.

Cheap Wii Games has some great prices on Wii games because it finds the best deals on eBay. These are not auctions. They are "buy it now" prices so you can buy your game today.

Finally, you can check out the auctions for eBay games, which provide some great deals on cheap eBay games if you don't mind waiting for the auction to conclude. Check out eBay Wii games here: eBay

Not sure which Wii games to buy? No problem. Try out Wii games by renting them first. Rent Wii games with a free trial subscription at Gamefly!