The thing with the CO-OP I think if we go out and find cheap electricity for it we could easily beat that. I would hope .03-.04 would be my goal range for the mining CO-OP to be able to compete with the "big guys".
Finding the right place for electricity and setting that up would be a big part of the initial setup period.
A lot more risks come into play if we decide to build our own datacenter. We'd need to hire dedicated support staff and provide an absolutely massive upfront investment. It will take
far longer to get from planning --> funding --> hashing. Remember, our quoted hosting rate includes not only electricity, but dedicated staff and space in the datacenter as well.
For that reason I think we should outsource our hosting--although we don't win on cost, it greatly lowers risk (its hard for someone to run with the funds), and greatly increases transparency.
I say we keep it as simple as possible.