Apple have a vested interest in getting into the server business. They have a lot of machines in datacenters. Some in the US, some in China, some dotted at other datacenters they own around the world.

Replacing the Intel machines with something that runs (a) faster and (b) with less power, is a double-win. I'd frankly be amazed if there wasn't a N-core or N-module server setup somewhere within the spaceship undergoing tests. And it's not that far from there to selling a Mac-based server. Which they've done before, after all...