I would agree with these comments living in Denver. My main box is a KR7100 made in 1989. It is similar to this one and I really like this era.$1500 to $2000 would be my WAG. Possibly up to $2500 if everything including slides was in excellent condition. I'm in NYC area so my thoughts on prices reflect where I'm from. Really just a guess on my part they appear to be a nice set.