Should I Sell Halo 3 for COD4?

I recently got Halo 3 for the single-player and split-screen, thinking it would be awesome. Unfortunately, the single player sucks and split-screen isn't that good. I feel bad because my mom shelled out $60 bucks at wal-mart to get me it, and I was wondering if COD4 is that much better?

cod4 awsome but short,great on live ,if any 1 can help with my redeem code!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

yeah, for sure.

walmart's policy is they'll take the game back, but usually you need to swap for the same game. i've gotten away with getting another game though. depends on the store and who's there giving a s++t. see if your mom kept the receipt

if you take it to gamestop/ebgames, they'll give you $30 for it. i traded mine in a few months ago, or maybe it wasn't that long ago, so you might get less.

but cod4 is outstanding.