When I was rooting/flashing custom ROMs I was spending a lot of time tinkering or debugging issues. I could deal with forgoing bank apps, Netflix, etc but I stopped in the end after cyanogenmod had an issue that meant emergency calls would soft reboot the phone. It made me realise my phone was an appliance not a hobby, I need to be able to rely on it and not be wondering if something won’t work because of the ROM I have installed or because it’s rooted.