Looks nicer than my house
. Though as DR says, a big problem in the UK is a lack of land. Its the land / location itself that pushes house prices so high - which is why my rented 2 bed house would cost approx £100k to buy whereas two villages over the same style of house but bigger / 3 bed can be found for as little as £55k, if you don't mind risking your kids coming in from playing in the local park with AIDS from needle pricks, or broken glass injuries...
But yeah, where there's abundant space to put them on, these are a brilliant idea.