Last one I remember seeing was one my dad sold in around 2007. They're a great rifle but no parts or aftermarket support available so they've ended up orphaned. That being said, their quality is likely the reason that you don't see them very often.
Depending on what the barrels are actually chambered in will have a significant impact on the price. I can't imagine that there are a lot of people lining up to shoot a 6.5lb 338 Winchester but in chamberings like the Old Man's (22-250 and 30-06) the right person should pay you a decent price. Likely in the $1500 range though I think it should be more.