Here's a list of how much money they give you for a certain game:
http://www.tivs.ca/trade-in-values/
(Click on Nintendo Wii)
Now this is for Canada but it should give you an idea of how much they are worth.
EB Games is the same as Gamestop.
For example, EB Games will give you
15$ for Monster Hunter Tri,
4.25$ for PoP,
7$ for Big Brain,
13$ for Super Paper Mario,
5.25$ for DK Jungle Beat,
2$ for Monkey Ball and
5$ for Pikmin.
Total: 50.50$
This is for Canada but the US shouldn't be much different.







