BFL is awful at replying though. Everything is on pre-order for the 50GH/s rig, and I sent an inquiry to them (twice) about a possible order to see what shipping would be like given the fact so many people are ordering and it's been at least 3 weeks. No reply.

The 50GH/s rig can make up its money today, but come August when people start getting their ASICs, everybody is going to hit a wall. There will still be profit to be had, but it's going to be like running a GPU today. Slow climb.