I have bought, sold and rented from Craigslist and Ebay. You need to spend some time digging and then when you find a possible gem use your instincts and good judgment before you buy. I just picked up a complete Blue OX Aventa system and base plate for $300. Used yes, well maintained yes and ready to go yes. I had the advantage with this purchase of meeting the seller at the halfway point so I could meet them and inspect the goods. (Not that I knew what I was inspecting_) But character judgment goes a long way with me.