I'll be honest with you on mining... While the S3 or the S3+'s are tanks you have to have 2 or 3 of them to have at least 1TH. I have 2 S3+'s personally and they run fine but don't expect ROI at all on really any hardware now. Keep it as a hobby otherwise being all about making money or a large amount of profit will take its toll. You need to take into account how much you'd be spending on electricity as well.
Thanks for the input ,
At the moment the current costs im being offered the S3's for
I can achieve ROI in 3 months excluding electricity costs,
I suppose that if you don't pay for electricity and you already have one or two PSU, RIO can be achieved. 120$ USD seems like a lot to me for a S3 nowadays.
I'm not sure about this warranty thing either like philipma1957 mentioned.
What would be your suggested price then He was asking for 160$ I bargained and bought it down to 120..
I bought mine in a group deal for 90$ a few months ago. You can always check the computer hardware marketplace section of this forum to get a better idea of miner prices.
https://bitcointalk.org/index.php?board=75.0