Customers would probably have the possibility in buying hosted GH by then.
and this is NEVER profitable for customers, so why bother.
Because in the described scenario, mining at "home" would be unprofitable anyway.
That is the whole idea behind deploying together to save costs....
It is basically the same than buying hardware and hosting it in a datacenter, but this time spondoolies would try to get the best bulk purchase discounts available.
But please do describe to me how you will be competing with (possibly immersion cooled) equipment with the best W/GH ratio and lowest energy prices on the planet (let´s say 5ct/kwh) by the end of 2014.