Except Apple has tight control. You're basically building your castle in Apple's kingdom.

If Google had used Apple appliances for their servers they would be violating the EULA and have lawyers knocking on their door.

Apple appliances are made for consumers. Apple's lawyers were not paid to cover business usecases, so they basically don't allow it.

None of this is the point of this discussion.

The point is: commodity hardware is powerful, and it's interesting to explore its capabilities outside of its original purpose. Apple or not.