I am the one person in this poll who drives more than 15000miles/year who has no plans to buy one. But having looked at the
Origin B2, I must say it does look like an impressive piece of kit, but the price including VAT was given as £429.94, which is of course a great deal of money. I don't mind cruising on motorways at 90, or ignoring idiotic speed limits introduced as part of the Prescottisation of our driving environment, but I tend not to exceed 40 where there are houses/driveways/children etc. And until we began to be Prescottised, if I saw a speed limit, I'd assume it was there for a reason - other than to catch people to raise revenue.
As a result, I have never been prosecuted for speeding in this country since learning to drive in 1971, and I've always been a 20,000miles/year driver. I was stopped twice - both times in the 1970s, and both times by a police motorbike. One time I was let go with a friendly word, and the other time I got a written warning but no prosecution. In cases like these, a speed camera detector would not help.
However, living/working in the USA 1980-82, I got stopped 4 times in 18 months! The speed limits over there were rather lower than here, and were
rigorously enforced. Although the national speed limit at that time was 55, I never fell foul of that. It tended to be places where they have a speed limit for a few yards - just because there's an S-bend.

But again, three out of these four incidents involved pursuit, ie. no radar was involved.
So in 33 years of driving, I've been prosecuted for speeding only once when a speed trap detection device would have helped me.
If I were going to buy a device of this type, it would have to work perfectly to interest me - no silly false alarms, so I'd get the Origin B2 based on the glowing reports I see here. Is it really as good as they say it is? Is there any new speed camera technology in the pipeline that the Origin B2 would not detect?
If the status quo could be maintained, I probably wouldn't bother with a camera detector. But given the hostile, money grabbing attitude of the current government towards motorists, and given that a third term of this government is not unlikely, I might be tempted to reconsider.