Yes, I purchased my PQ1500s from eBay. I purchased it used from an individual, not from one of the Ebay dealers who sell new machines on eBay. I've been very happy with it and ended up saving quite a bit of money over what I would have paid if I'd bought it new.
Before I buy anything from Ebay I check out the seller's ratings. In addition to their ratings, I look very carefully at the listing and if I am not clear about anything in the listing I use the feature that allows you to ask the seller a question.
Rob