Nothing. I self-host nothing. My entire home networking infrastructure consists of a more powerful WiFi router than the one built into the modem that the cable company provides so that it reaches to the back of my apartment. I pay money for GitHub, Dropbox, iCloud, Apple Music, Netflix, Hulu, HBO, Amazon Prime, a VPN to spoof my location occasionally, and Google Apps (or I would, if I were not grandfathered into the…
I don't self host a lot of services (and the ones that do could go away tomorrow without hurting me much) but I only have one cloud resource - email. It kind of has to be that way for various reasons; I'd self host if I could reasonably do so. I also think I value my $75/mo more than I value an endless stream of entertainment.
(edit: just wanted to say, thanks for posting this. It is a valuable discussion point.)