You could buy better 68.96 BTC or 4310 LTC and hold this on a cold storage. Well is only an idea. But if you want fun then I'm sure that any guy
will suggest best choice of miners equipment.
This man speaks the truth.
It depends if letsmine Have a very very low electricity Bill.
Here in EU we pay 20 eurocents per watt in average.
In Italy we can reach 25/28 eurocents....
Too high..., for mining... And for profit ;-)