What if I want to buy a Ford Fiesta with a diesel motor in it but they don't sell one? Then I guess I don't buy one.

Just because it's Windows 8 logo doesn't mean that it won't run Linux.

Microsoft is saying that to be Windows 8 logo it must support a certain set of features. There is nothing preventing OEMs from adding value and making more features, like adding Linux keys, or creating an option to disable secure boot.