Reddit chatter saying that it will be roughly the same as building a rig, so 180MH/s for about $2500. That's what the performance of this asic will be.
That's what I was thinking, if it's going to cost just as much to buy one of these F3 miners as it is to build a rig then there is not need to worry.
In fact a GPU rig is better as you can at least sell, or reuse, all the bits once you've finished with it.