Got mine NIB in December for $1700 from an authorized dealer. It's normally in the $2000 range. It was an end of year inventory reduction sale and I couldn't say no at that price.
I found an interesting link at Tom's Hardware Guide that would have to be the ultimate FPS multi-screen display. Any Unreal Tournamet players should take a look. The software is free and you only need 2 projectors.
CaveUT 1.2
Just remember to take your Dramamine.