I could see a frequent traveler using an AVP as a "full setup" on the go. In my experience, I can get away with most with a MacBook. Some projects really benefit from the extra screen real estate (and a mechanical keyboard.)
I can get any task done with my laptop. But not a full day's work. And if I want to travel while I work (which I would like to do) then I need a better solution. This is why I'm looking into VR and also a 4K projector, but a projector would have to be able to be seen in a bright environment, and I don't know what the current state of projectors is.
Looks like 3k lumens is your maximum. https://www.google.com/search?q=3000+lumen+projector+in+dayl...