Well I think it's mainly because nobody has done AR well yet for the mainstream. The only one I can think of is the Vuzix Blade but that isn't really AR. It doesn't recognise you environment, it just projects a picture in your eye in the same spot wherever you look.

I played with the Hololens 2 last year and I certainly can see the benefits. Especially when communicating with someone else.

However for $6000 that device is not going to happen for me ;) AR needs an "Oculus Quest" approach to be useful to consumers first.

I do love VR as well but I do think there is a big usecase for AR once it becomes good and affordable at the same time.