Please ignore the "fanboyism" of the first response
I haven't had any issues (not a big user) with Ebay but you should buy it new, that way you know for sure nothing is wrong with it. If you buy the $15 one and its' messed up you'll be spending close to the same price if you decide to buy another game.
Also, do not let others opinions dictate what you buy. The "other game" is catching up.
Just my two cents worth, but aside from the great graphics and gameplay, just how is the "other game" catching up with the fact that you still have to purchase a new game every year to keep up with the roster and schedule changes?