BHOFM AKA Brad I'm not surprised that you know where every dormant bike lies in your surrounding community. I am willing to bet that we will see a great many of them reconditioned and hitting the roads for many miles shortly after they are finally wheeled out for the yard sales.
For the most part, yard sale bikes are grossly over priced. I do better at the Salvation Army Thrift Store.
The is a house up the street, they have had the same bike in their yard sales for over ten years. It is a
no name bike, no labels at all, they claim It cost $1200 new, needs some adjustments and tires, they
want $750, firm. It has all Falcon equipment?? It is a full blown road bike.
Most of the ones I look at are junk or several hundred dollars. I looked at a Roadmaster, they were asking
$125. A Specialized, Expedition Ellette for $250, the chain and freewheel was solid rust, the chain humped
up when I tried to spin the wheel. It has a lot of other issues as well. Lots of Wally bikes, $75 and up.
The local pawn shop has a Trek like mine, they are asking $799. It is a later, aluminum framed version.
I rebuilt an old Ironman for my neighbor, he has never ridden it. That was almost a year ago.
I wish I knew that answers...