Yes, they do sell Kitchenaid food processors and stand mixers. I've seen them in a few stores here in Scotland. I, personally, own a kitchen aid food processor that was purchased at John Lewis for about £250 (definitely not the cheapest option), but it was a wedding gift from my aunt who knew how much I coveted it.
I love it, and I stare at the box all the time in admiration (i've only just gotten married and we are still unpacking things). I can't wait to start using it.
If you want kitchenaid (and I think cuisinart products too) you can get them here. But if you can't afford the price, there are plenty of other good options.