How much is a craftsman scroll saw worth and what year is it from the item number is 103.23151?

How much is it worth? I just bought one for $40-. I've seen them range from $15- to $65-, depending on the stand (if there is one) and how well it works. Mine came with a beautiful homemade stand and extra blades. It runs like a champ!

As far as I can tell, they were made from 1944 or so, when King-Selly bought the Companion Co. that had been making a similar product, to no later than 1962, when Emerson bought King-Selly. My saw has a Craftsman decal below the blade in front that also has the King-Selly name on it. The manual for mine is dated Feb 1951.