My wife has talked to several auction houses here in recent months and they've told us the only machines that sell are the newer plastic wannabees and computerized machines. They have trouble giving away the old(er) machines.
We haven't done a yard sale here. This is a pretty dead city for anything but give away items.
It's gotten so bad we can see adds for yard sales on CL for one weekend and then the next Monday the same people put in a Freecycle add for the next weekend. My wife has gone to a couple of the Free-For-Alls and been told they couldn't sell a thing at their yard sale, but they were cleaned out during the Free For All. Her theory is the resellers are hitting the FFAs and taking stuff back to their shops.
Joe