I have seen a lot of complaining sand saying that the Linux kit is too expensive. Even the stuff that is actually Linux kit (System76, maybe Tux). I'd be glad to be wrong, but I'd be surprised.

I've said it before, and I'll keep saying it: the smartest thing Apple ever did was keeping you from running OSX on Windows computers. Nobody buys a commodity PC, slaps OSX on it, and expects it to work as well or better than Windows. Yet this is how many do Linux.