I just spoke with a lady that paid $10,000 for hers last year. It was the HQ16 with the table and she was trying to get $4,500.00 with no SR. Anytime you buy it used, make sure you test drive. If they are not willing to get it out and allow you do test it, don't walk away, R U N!!!!
PS The lady finally did sell hers, but she only got $3500.00. It was a nice machine and was set up the entire time in her dinning room with very little use.