Also consider that sites like what-to-mine use the most optimistic projections possible, meaning your pool never runs into a bad streak of luck, your miners also never get into a slump for guessing shares, none of you rigs goes off for more than a minute, and on and on. Highly unrealistic and is usually estimating your income to be about 2-3% higher than it will be over the long term.

In any case, with an estimated profit at roughly 0.5 cents per GPU, it is not even worth considering. Even at 8 cent power with the unknowns and unseen overheads factored in, it is still a wash. People with 6 cent power may be desperately clinging to low profits, but in all cases except for the free power grabbers, I think most miners are now mining at a loss or in the best case barely breakeven conditions.