I just saw i could rent about 125ghs for around $54 for 4 months not a bad lotto ticket.
You could buy a used S1 for about that and have 200ghs for as long as you want. I'll sell you one + psu if interested.
The power cost is missing if he rents power is 0. If he mines power is ?
Well he's not going to make his $54 back either way, so better off to own your own hardware.
not if he mines it here. but in general owning is better then renting as he can sell it off later on.
heck if he buys from you mines here for 2 months never hits but coins jump to 1000 he can sell your gear at a profit.