The projector geeks that hang out at AVS tend to get a new machine every fall. You can get them for half of what they were new.

I'd just figure out your max spend, what machine you want and then wait for one to show up in the classifieds. You are usually better off buying used from the geeks because they take care of their stuff better than any vendor would.

I'll most likely be selling my RS20 next fall if LED lit LCOS machines roll out. I'm tired of bulb lit machines.