This is bull. I've used colo and been paying 95th percentile billing for a decade. We've run our own hardware. Much of your list didn't even come in to it. E.g. you don't need your own router, you get awesome ddos mitigation from upstream providers like NTT super cheap. It's been a major competitive advantage to get bandwidth this way.

Cost of IPs? Memberships? Wtf are you talking about? Cross connects? This stuff is all free, not needed or cheap and a one time fee.