They quoted me $900/month for a 10G port with a 3 year term at a third party data center. I'm certain you can get that deal or better as a customer in their facility.

There are several carriers in the building that offer $200/mo/Gbps or cheaper; HE has pretty competitive additional bandwidth as well.

(And yeah, 42U.)

This is 1gbps transit so not that low considering you will need a cdn anyway and can also peer