I would pay a premium for a system that never gets any new features except for bug & security patches. In fact, that's more or less what iOS was for a long time, and I loved every second of it. Once you have a good feature set, you can spend years and years ironing out 100% of the bugs and vulnerabilities and you'd build a rabid fanbase of crotchety tech-saturated users like me. I want something that Just Works.
You probably would, but that's the number one complaint about Debian: "Where is my fix of new shiny?"
I'm talking about things like how a weather app shouldn't have access to the filesystem, or camera, or microphone, etc... A calculator shouldn't be able to see my location or even what networks I'm connected to.