10 -25 % off of new is what you are likely to find depending on condition.

The diamond is like $2600-2800 new, depending on the model (control on the front, or hidden control on top, stainless door, or panel ready). I would say around $2000 (or less) would be good for a floor model.

xedos and fauguy, thanks for the replies. They are asking around $2000 which is more than I want to spend, but from your replies is reasonable.