I think people are missing my point (deliberately or otherwise). Of course it's fine for what we use it for, by definition, because we could hardly be using it for something that can't be done with it. If you go for the "writing a letter" argument you could probably say I should sell my Iyonix and go back to the A5000, or earlier. If I'd been brainwashed then I would be using WinTel machines all the time (the fact that I am now is because whoever buys them at work has been brainwashed, not me, although a great deal of what I do here does need lots of processing power).
In any case, that's not what I said. I said that it isn't the best hardware for a desktop machine, which is true, even if 99% of the time we don't need the best, and what we have does very nicely.