What content in the demo would make you decide to purchase this game?

[Raw Kryptonite]

I'll be buying regardless, but I think more in my group would be likely to pick it up at release if we had a good multiplayer demo. Objective game type, a few basic planes of all varieties (assuming we have some attack/defend bombing/escort game types?). A good MP experience sells games a lot better than a limited SP demo since *good times with friends sells games*.