Hey, who do you trust more?

a) Servers that were made in your own in-house factories, with silicon mined from your mines, using tools made in your other factories, staffed by people who are only related to you.

or

b) Servers made by another company.

You _always_ depend on another company in some capacity. I'm not saying that everything should be outsourced, obviously... but even colo servers that you own are in someone else's hands, and physical access to a machine is one of the surest ways to be able to 0wn it.

You gotta trust someone somewhere.