Yeah, it has to be a great rifle if it is going to demand that high price.  Especially when you can find a decent entry-level AR-10 for $700 and FAL's, M1A's and G3's in the $1000-1200 range.   

I don't think a bullpup brings enough to the table to counter the design compromises.  But the idea of a short rifle without having to get a tax stamp is appealing.  High quality AR-10's are around $2000, RDB's are around $1400, the Century CETME's are $1500, I can't remember what the good, non Century CETME's, are called but they were 5-700 more than the Century's.  SCAR's are around $3000, the Fal's and G-91 are 4500  That makes the Desert Tec reasonable in terms of price even with the issues to be worked out.  I have a friend who thinks the Scar-H brings enough to the table that he sold all his other .308 semi's.  I still think that I will end up with an AR-10 variant due to initial cost and ease of caliber conversions.   

The DSA Voyager is $999.  More for the higher end models.

Yeah, the genuine HK and FN models are collectors items now.