I have an opportunity to buy a Biesemeyer sliding table that is in mint condition. I know it's no longer made so my thought is that it must not have been very popular or it was overpriced. It seems to be very well built and should last for many years. I've made several homemade sleds over the past 30 years, but am tempted to buy this one. Has anyone had any experience with these and what are your opinions? What would be a fair price to pay for one? Thanks in advance. Jim