I have backed the following:

Wasteland 2
The Banner Saga
Project Eternity
Dead State
Paper Sorcerer
Expeditions:Conquistadors
Shadowrun Returns

I have backed each at the minimal level to get a copy of the game. I'm not too concerned about losing $15 on average. I'm confident that at least half on them will actually be released. I see Kickstarter as a good (albeit risky) pre-order mechanism.