You win if we win

Yea me too...

In my opinion, its because bribing is taking away from the integrity of the contest. It's encouraging people not to vote based upon their true opinions of the two games presented, but rather because one game or the other is offering them free stuff to click a button. I could potentially play both games in my spare time and prefer game A to game B, but if game B is going to give me double experience to vote for them, I'm more inclined to vote for game B if I have any desire to play that game at all, even if I do slightly prefer the other one. This effectively invalidates the results of the poll (as far as "what is your favorite game" is concerned), and makes the whole thing rather meaningless.

Just my two cents.