More is made selling hardware than actually mining with them, currently.
Just check ASICMINER overvalued wares.
ASCICMINER hardware costs WAYYY more per GH/s than BFL. That's why BFL smells like a scam. Because why would someone sell a device so profitable, for so little money?
Because BFL hardware does not exist yet. They used (and are using) customer's money to fund development and production, and they are VERY late.
To the contrary, ASICMINER hardware is very well and immediately shipping, thus they can charge pretty much whatever they want. People is willing to mine at a loss just to get hold on an ASIC.