Same is true for any tech thing. Sure, you can buy a perpetual licence for something but if you’re running it on anything but an isolated device then you will at minimum need security updates or the source code to fix it yourself. Same is true for things like console games where eventually the hardware will just die and it may become too expensive to replace it. Even emulation is case-by-case since some games use obscure calls which have no adequate emulation. Software doesn’t exist in isolation. For that, you have to revert to pen, paper and some analog tech.
Same is true for any tech thing. Sure, you can buy a perpetual licence for something but if you’re running it on anything but an isolated device then you will at minimum need security updates or the source code to fix it yourself. Same is true for things like console games where eventually the hardware will just die and it may become too expensive to replace it. Even emulation is case-by-case since some games use obscure calls which have no adequate emulation. Software doesn’t exist in isolation. For that, you have to revert to pen, paper and some analog tech.