Not sure that's true. I've fixed a couple of things recently (touch-controlled lamp, remote controlled mains socket) by simply taking them to bits and soldering a replacement fuse onto the circuit boards. I've also fixed a couple of local kids' Nintendo Wiis with a £7 part from Ebay. People look at me like I'm some sort of magician, but this stuff is really really easy, just nobody knows how to do it any more.