- put a rack in your home
- buy an IPv4 block
- buy dark fibre
- start your own ISP
- advertise routes over BGP
- host your own email
- found a registrar and transfer your domains over
All easily obtainable for less than a million dollars in capital. Though once your FTTH and undersea cable operations ramp up you'll need further access to capital.In all seriousness, I am a big advocate for hosting your own infrastructure as much as you can, but that requires you to be REALLY into doing it. Otherwise, it's just a completely unnecessary chore.