They hold there value. I have seen them go for near new prices on ebay.
I bought mine long before my internet days. I saw a power hack saw advertised, so I went to have a look at it. When I got their I found out the old guy had died and where clearing a work shop he rented. It was near the end of the day and I found out it was a bandsaw not a hack saw, and they had it marked down from $150 to $100 because no one had bought it. so having never seen one I thought I would give it a try.
The blade that come with it was blunt and cut to one side and after a lot of head scratching and adjustments I bought a new blade locally ($30 each back then) and it came to life. I think they may have not been able to work it out themselves and put it aside.
Something to remember when people recommend bi metal blades is the teeth rip off in thin materials but are fine for thicker solid. The local saw place here only sell bi metal blades for these and at $30 back then a pop I went through a few. Now I just run the Starrett carbon blades from H&F's and have no trouble with missing teeth on thin stuff and they cut the thick stuff fine.
Dave