Good luck with your venture, but I'd imagine that a company with engineers smart enough to make a chip with this level of performance would also have worked out a design for a cost efficient system. Your pricing ratio presumably doesn't include the costs of PSU's?
You are little bit wrong about smart engineers. It is like producing devices and hosting devices. Sounds similar, but in fact completely different business.
I "sell" design for cheap. Many times cheaper then develop it, because I have it already.
Yes, my pricing ratio includes PSU!!!!