$5000.00 sounds a lot for a DVR, but I’m more than sure there’s good reasons for the high cost (bar corruption)
My first Hasselblad camera and Lens in 1984 cost me £1200.00. in 1981 my three bedroom house only cost me £16000.00, 13 of these Hasselblads and I could of bought another house
in todays (from
http://www.thisismoney.co.uk/) say it is £3,622.00, in todays money. the Hasselblad had no built in light meter, no auto exposure, in fact when you looked in the view finder everything was left to right, anyone who’s used roll film cameras might know what I’m saying, it took only 12 exposures before you had to spend another 2 or 3 minutes changing films over,
an amateur 35mm SLR in those days could of been had for about £150 / £250, both were cameras but for different markets and different uses.
I think the same is true here, these cameras are more than likely used 24/7 and they are buying in to a modular system where the DVR body is only the foundation block of the system, they can add on to as and when they are ready for the other attachments/newer technology, also I would think they come with a service/maintenance contracts