1. Too much startup friction. I share the Apple Vision Pro with someone else who like me also loves it and uses it all the time. But since we both wear glasses, there's a 2x ~10 minute process for recalibrating the eyesight each time we switch. It's an expensive device at $3500 which I'm happy to pay for quality, but to pay that twice, I just couldn't bring myself to do it. Apple goes too far with the greed here not letting us set up separate profiles. Netflix wouldn't get away with that. You not only have to repeat the setup process when switching, you have to share access to your apple user account too.
2. My main interest in a vision headset is I want a new virtual workstation where I can watch movies on a gigantic screen beneath a gigantic translucent terminal where I can do my daily work. There's a nice app called La Terminal that does just that. Sadly it has some serious keyboard latency issues since I don't think they've put as much focus into their support for this platform. I won't tolerate anything less than optimal latency in my work tools. So until I get around to building a terminal app for Vision Pro on my own, there's not a whole lot I'm interested in doing with it aside from watching the occasional movie on the moon. I would also really like for Vision Pro to have an ethernet port because I don't know how to run a wifi network without jitter.
If you haven't tried one of these things, then you really should. I didn't realize when I first put one on that it was a fully synthetic display until I tried reading the 10pt text on my computer monitor. It's really a stunning thing to witness. This Vision Pro is probably the best glimpse we can get today of what the singularity is going to be like in the future. So definitely give it a try at least once.