I'll speak up.  The "value" could be all across the board, and a lot of it depends on how you choose to market the range and how patient you are.  For a local Craigslist-type sale you could expect $100-$200, but if you tried Ebay and/or are patient you could possibly ask $500.  What you can get for the range also depends on its working condition and cosmetics.  This one appears to be clean and in good condition, if you can state that you know everything works that helps with your price.

This is just my opinion and, as others here have stated, "actual mileage can vary".

lawrence