So in your view a reseller who customises a Mac for a customer has infringed copyright because "even a settings file" has been changed ?
I didn't say that. In fact, I placed that in a separate category for just that reason. I think Apple has an argument. I'm not certain it's a winnable one or not. THAT would be an interesting scenario if that is what the courts have to decide. I really don't think Apple would sue in that case though, I think code was changed.