I'm what the Brits might call a "keen motorist", but as someone who considers speed enforcement a necessary evil, there's a world of difference between paying a bit more for much better tech, versus way more. If this costs 4x what a normal radar gun costs, one must ask "what is the problem we're solving", and is it worth the money? Are there renegades out there going double the speed limit, then magically slowing to below the limit 1/2mi from a radar gun, somehow?
I'm certainly happier with the idea of an officer-operated speed camera than one parked by the side of the road with no discretion whatsoever.
Of course, there are plenty of people who rightfully point out that discretion can mean discrimination.