I do wonder what the public profile of CUK is. A riding conversation with 5 club mates yesterday showed the 4 of them have never heard of the CUK .( How I hate that. Its just like BC . It should say something like The ....... to make grammatical sense. Although British Cycling does work in one context eg British Cycling happens in all weathers. That poor grammar finished things off for me. )
As a club we wonder why we affiliate. Mostly so we can play BC off against CUK and cheery pick what we want.
Discounts.

Off RRP usually. Shopping around is easier. The only organisation discount worth having is BC when you can get Halfords to pile in onto sale item plus a bit of top cash back.
Bc for me. I can race. Don't care a toss about the helmets in events rules as I don't ride them otherwise. Nor do I use a helmet all the time.