That link didn't work for me, miceelf.
I hadn't thought of it before, but yes, I have noticed it in my nearest small town. As shops have closed, the betting shops have moved in. I hate any form of gambling, so it has worried me. Along with Wetherspoons buying up all the prettiest locations in towns. The betting shops worry me more. Strangely, I have never seen anyone go into them. Maybe they are frequented by particularly furtive sneaky people in my area.
Many years ago, I lived in a village that had a pub, a butcher's and a betting shop. I couldn't understand why we had a betting shop until the butcher died. I had often seen him running in there when there was a lull - he was very popular, his meat was legendary - and running back to face all of us queueing and waiting for him.
In his obituary it all came out - he owned the betting shop and had opened it to make it easier for him to place his bets!