I bought 2 wii games from EB's '2 for $50' sale 2 weeks ago, played them both then traded them in for Mario Kart today at JB so I am just letting everyone know that this 'deal' actually works!
You need to be careful that only two wii games from EB's '2 for $50' deal are actually NOT on JB's exclusion list. They are Rayman 1 and Surf's Up. You will be able to find Rayman at pretty much at EB store that you walk in, but Surf's Up is very difficult to find.
EB's sale still has a few days to go, so best of luck everyone!