I wondering is it rental really worth it?... I'm having free electricity but cost of the miner are just too high here...
Rental is worth it at the right rates only if you achieve under 100% for the round. With free electricity even if an s7 costs you $1200 right now it would still be worth it versus those of us paying .09 kwh because at that rate an s7 costs roughly $100/month.
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S7 itself just 605usd in bitmain website.. even plus the psu around 750... im having free electricity.. is it worthing to get an s7? or i should just stick my lonely s5.. and throw money on rentals?