So roughly $750 for HD cards, a few hundred for mobo, case, power. Not a lot of profit in if if not a scam. This is a quick assumption of the GR1 (800MH/s). Cheaper and more efficient to purchase the parts and skip the $100 shipping.
This sounds a lot more like a group building rigs for mining based on current available hardware and accepting bitcoins.
Just my opinion.
That is exactly what we are doing with our GPU Rigs.
It is unfortunate that new business in the bitcoin mining industry are being instantly labeled as scam artists based on past experiences individuals have had with other companies but honestly, this was expected. I just hope that over time we can show that we are not here to scam anyone and that we can earn the trust of the mining community.