Hi guys i've recently started to get into bitcoin mining with my gaming rig and it's awesome lol. my current pc has a amd fx 8350 (OC), not bad maybe 50-90cents/day with a gtx 1070 aero edition anywhere from 1.25-2.50/day. but anyways was hesistent about it at first thought maybe it was a scam. but nope lol been using nicehash for about a month and got paid out in .01(started second week of the month) and converted it to usd. so now i'm thinking i'm gonna get in on this bitcoin farming.

so my question is do any of you guys know a website other then bitmain (there to expansive at the moment) where I could buy a new or maybe used s4+ - s7 my budget is around $500 at the moment. and I also live in canada to be a little more detailed.