The antminer s3 seems like the best deal at the moment as far as w/gh, but none of them seem to be able to break even. Is there anything I am missing?
Nope. It's a bad time to buy mining hardware.
When I hear this I remember a friend of mine he always waited to get the fastest computer and he never bought one.
So when is the right time to buy mining equipment I say when you decide it buy the best your pocket can affort