No. 3: Betamax
Some said it was the future, but in reality it had already been supplanted. Nor did its backers pull the plug until the alternative was inevitable. No, we’re not talking about Gordon Brown but the Betamax video format:

Unlike Gordon Brown, though, the Betamax still has a vibrant fan club. Certainly, no-one would get so steamed up about the PM as to point out:
I have a few M10 and M20s that I am looking at. Loss of colour seems to be a problem that happens to these models apart from the obvious belt and drive rubber isues. Replacing the top board fixes the problem but I am not sure if its a faulty IC or an out of alignment thing.
Fucked, or what?