I bought a 15" Craftsman of CL for $50 last summer, its in mint condition. It was listed for several months with no takers with good pics but I was the only one who responded according to the seller.
I certainly wouldn't sell it for that much but apparently there's not much demand for them.
I bought a 14" as a spare for $30 a few weeks ago as well. I believe they sold for about $250 new. I believe they were from the late 70's to early 80's.