Scrub looking to start at ~$150

I'm looking to start at ~$150 I know very little. Looking for any helpful buying advice. Is buying used a legit thing? I've seen the Antminer s3+ at $150 which would take 147 day to break even with free power and no power supply. I've looked around the Reddit and found very little that would be helpful recently. Thanks

Submitted December 01, 2015 at 11:03AM by Polackikvitz http://bit.ly/1lr7b2T