FOBTs is the short answer. There was legislation in place to limit the number of machines based on the square footage of the retail outlet.
One of those shops will now close I expect.
I won't bleat on about job losses as they were inevitable any way. SSBTs (which aren't covered by the same rules as FOBTs) will become the norm and retail shops will resemble little more than a games arcade but with sports betting. Todays decision has just accelerated that transition. Eventually like a lot of high street it will disappear completely.
The real loser out of today is the punter, FOBTs will now push the games that aren't affected and increase margins across the board and as I mentioned above betting shops won't be social hubs like they are now. Not sure the treasury are going to be too delighted either.
Trust me there's no loss to the punter here. If the punter had to go to a betting shop for social interaction they've already lost. Ban the whole industry and spend the money on social centres.