Fair point N64 emulation has been around for years, and plenty of people have had decent experiences with the existing emulators and ROMs. Sure, it's not perfect, but for casual play, most N64 ROMs run well enough to enjoy the games.
You're right about perspective too NESticle and ZSNES felt amazing at the time, even if they’re considered outdated now. Expectations evolve, and while some users chase perfection, for many of us, the mix of convenience and nostalgia is more than enough.
Of course, if someone really wants 100% accuracy, original hardware is still the way to go.