Hey there, I currently have 4 S3 miners. I am going to purchase an S5 soon. What do most of you guys do with your old miners? Do you guys sell your old miners or just use them in your mining software?
Sell them is what I would do. I sell all of my old gear and buy BTC, then buy new gear with it. I have normal electricity... so my S3's sold long ago. I try to sell when I know I will make more off sell then at my electricity rate just mining them. But it is speculation to a point.
Either way your better off selling and getting BTC over them setting around collecting dust.