The B&Q turbine costs £1500 - I've got a leaflet at home. When I can afford one, I'll get one. We've already got solar tubes on the roof that preheat the water. During the summer, when the Rayburn's out, they mean that we only use a little electricity to heat the water. Every little counts, and it's about time we stopped being so wasteful. Just about everything modern society does is wasteful of resources.
As for wind turbines, the Danish approach where small scale local generation (eg a turbine for the village / district) not only has less visual impact, but is also more democratic (usually owned by a local co-operative) and responsive to local needs. In Britain, we all get fleeced by big business. They get the grants, but are out to maximise profit, so will only put a generator where they can get maximum return, so a park of 30 or so huge turbines bang in the middle of a site of natural beauty will do just nicely, then. What Britain needs is what we preach to the rest of the world: a dose of accountable local democracy.
I'm just getting going nicely, so I'll stop here, but things'll never get much better until Whitehall returns powers to local communities. In France, once the epitomy of the centralised state, decentralisation started in the early 80s, and the regions and municipalities have real decision-making powers, and the money to back it up. I was in Montpellier last week. A vibrant, energetic modern city which nevertheless respects its cultural inheritance. It puts modern British cities to shame.