I only saw one once at a B&B I was staying in. The hostess said she loved hers and explained how it worked with visible pride.
AGAs are really neat; you can roast without drying things out. They're good for the UK climate because they're always warm, which is nice in a country with chilly summers but kind of a drawback in the hell-hot summers of the US. And here they cost about $12000 to start with!