Yeah, the pickers are douche nozzles.
I got two screaming deals in one month. An 85 Puch and an 82 Express, $50 and $20 respectively. Both sellers were aware of the approximate value of their bikes. The Puch seller wanted $350 at first, I offered $40, telling him I always start low and that he could probably get more like a couple hundred on CL or ebay. I even told him I'd list it for him and answer all the queries, for $10. He didn't want to mess with that and was in a big hurry to move. The Express seller said he knew he could get a few hundred for it, but wanted to pass it along cheap because God had blessed him in other ways.
Neither bike ran. The Puch has a long list of missing and broken parts and the Honda needed some work and a substantial list of parts too.
I had no intention of flipping either bike.
The pickers are very much like most of the house flippers that hire me to magically fix their houses cheap, so they could make obscene profits. Profit doesn't bother me, what bothers me is their assumption that every contractor should work for rates that total less than minimum wage; then sell or rent their houses at prices that a $20/hour worker would struggle to pay.