I was wondering the same thing. I would bet they are a great piece of gear. The only downside to the BORS is that it is limited to one rifle. I've been thinking of picking one of these up: Barrett BORS system DEMO-A
Still a pretty penny but a little cheaper than anywhere else, better hurry only 3 left.
sure they work great, do i use one? No... Why? - because they are expensive and the same result can be achieved by mounting my iphone and a nice little app called ballistic FTE
nice peice of kit for sure and it does speed things up a little before you pull the trigger, but generally at long range you have plenty of time to dial your shots anyway...