But they will come and will get better. Apple is also supposedly still working on some and they'll likely try to get rid of the "camera issue". Or maybe they'll try to make it the new normal. But they already exist and there will be more of them in the future - with and without cameras.
Unfortunately due to meta's perv glasses they are getting a bad name too, it happens when I'm using them that people think I'm recording them. They are more bulky and clearly tech glasses, and many people understandably don't know the difference. They're more noticeable than meta's glasses.
I had that last time on the plane. It's really annoying because they have no camera nor microphone. They're great displays and can even do 3D. But meta is ruining that for us now too.
But yes, they are bulky.
But they announced the Aura which has 3 cams no less: https://www.xreal.com/es-en/aura
And also two of them are in the same spot as Meta's so it will be really hard for a layman to distinguish them.
Personally I don't really like the tracking because it means I have to point my face in a very specific spot to see the whole screen. Or I have to make it smaller and lose resolution. I like the way it stays locked to my vision with the cheaper ones, and the price of 200 euro makes it great to just carry around without worring too much (even though that's still a lot of money for me). I wouldn't pay 600-800 for something like this.