I never understood that. You don't buy a Mac for the hardware. It is hugely overpriced for what it is. You can buy a much better hardware for the same lrice or the same hardware for a much lower price.

You buy a Mac for the OS. Buying a Mac and wiping the OS makes no economic sense whatsoever.

It is a much different situation with Windows. As discussed a page or two back, having Windows pre-installed often reduces the price of the hardware so it makes a lot of economic sense to buy one and wipe the OS. But Mac? No way.