Only mining for a few Weeks, so very late to this game, treating it as a hobby as opposed to a get rich quick scheme, and am righting off the harware costs but trying to make more than the electricity costs. Very happy with Bitmain, all bought second hand.
An S1 for the initial learning, cannot make more than the electricity cost even with the pencil mod.
An S3 & an S3+ with undervolting am at about break even with the electricity cost on these.
A couple of S5 which running at the rated frequency & voltage I can make about 70p a Day at the moment.
Looking into undervolting the S5's and then may just still be profitable after Bitcoin halving.
Just bought a second Hand Gridseed Blade to have a play with Scrypt.
Addictive things these new Hobbies.
Rich
