That's a very petulant attitude. No-one knows what their fuel costs are going to be in 18 months time, never mind the 20-year+ view we're taking.
The world isn't just running out of oil and gas, it's running out of clean water as well. When all the countries that rely on the Tigris/Euphrates water system realise what Turkey's Iliçu dam project is going to do to them and get around to doing something about it, today's middle eastern conflict is going to look like a tea party. What's going to happen to oil supplies then? America's already demonstrated that it wants ALL the middle eastern oil: opposing Iran's plans to pipe oil to India; opposing similar plans to pipe oil eastwards from the fields in the old Russian republics, etc. Oh, let's leave some for our European friends? I don't think so.
Energy's going to get a lot more expensive, regardless of the source; the one we can control best is home-generated electricity. We have the second highest tidal rise in the world just down the road from us here - we're going to have to use it to generate power, and quickly. For us, in our personal circumstances, the sensible view is to buy electricity now and generate our own when we can. Whatever the energy source, insulation and draught proofing are critical, and that applies to everyone who wants to get the maximum benefit for their money.
You may have a different view about the future, or not care about it, that's your privilege.
A big thank you to those who've contributed constructive and informative posts - much appreciated.