I used to whistle the same tune...that DBs are a ripoff and waste of money. Then I bought one, and man my mind changed. The quality of the fabric, pattern, window system, everything about the blind is really unmatched from everything else I have seen so far. They sell for $400, which I am not quite sure I would shell out for a blind either, but can be had for 300ish used or even substantially less. I know of a used once DB matrix 360 in the green deception pattern for sell for $300 or less, can't remember the price exactly. They are out there, just check some classifieds across the web.
I got a deal on my new one, that I am not / can notrepeat.