It's not an ASIC. It's a FPGA so it's bound to be more expensive. While you get roughly the same Gh/s, the two systems are vastly different and thus makes up the difference for the price. If you look at the FPGA, you will see that they are a lot more expensive. Please, calm down and read their post before posting like this.
Furthermore, we do not have the full details yet, but it looks like you get $2000 off the ASIC if you buy the FPGA, making it $745 for the FPGA.
If you feel that you have wasted your time here, maybe you should subscribe to this thread. No point in further posting.
Whoever you are a troll for kncminer? They come out with 50gh/s ASIC initially and now change to 6gh/s, we don't care about FPGA any more because at 6gh/s they are out of the game, Useless and dug their own grave in this industry. ASIC is the King, either you have them or forget about mining btc. Why give us the $2000, no one is interested in the $2000 because if they can change spec they can change their price anytime. Why not give us $745 and FORGET the $2k.. Everything is about Costs and Timing, Now they are both out.
Because nitwit, the 2k is an advance on producing the ASIC devices. You agree to lend them 2k, and they'll let you have a 6gh fpga to mine in the interim at $795 total cost. The combined investment in the fpga allows them to develop the future product plus 6gh gives you something whilst BFL ship and increase difficulty.
The real danger is the open source plans Avalon are releasing with their 10,000's of chips they are flooding the market with to DIYers. The hobbyists will create a more affordable competing product.
But should KNC encourage expansion, over clocking water cooled chips and modding in general as well as more efficient power consumption then there is at least some future proofing.
ROI is not guaranteed though, especially not with BFL! And almost certainly not those that paid BFL with bitcoins pre-order in '12!!