So who are you going to buy that supports major consumer OS releases for more than 12 years? Ubuntu's LTS support is just three years. Apple's OS X support var

So who are you going to buy that supports major consumer OS releases for more than 12 years? Ubuntu's LTS support is just three years. Apple's OS X support varies (I think it's current plus past two?) but is < 5 years. So who are you going with?