Why would they "chip in" here?
It wouldn't be economically rational for Apple to bring down its own moat.
When they switched to x86, it didn't take long for them to release Boot Camp, so they could take Windows users' money, too.
How could that possibly disrupt their Software/Services infra?
I am not an Apple user. Do you _have_ to pay for iCloud if you buy the laptop? I don't think so.
Amazon do the same with the fire.