Quads can still bring north of $100. From what I've seen, lower end machines can be a struggle to move.
Not too long ago, I was communicating with a CL seller who had listed a bunch of stuff for sale but sold it all before I contacted him. He had a single 1.6 G5 left, and told me I could have it if I'd come get it. I passed on it since I couldn't bring myself to drive to the north side of Cincinnati for a free 1.6.