I have the ReMarkable 2 so I am biased here but these devices do more than replace paper.

My fav feature so far has been screensharing from the ReMarkable 2 while on online meetings.

So while their whole thing is about replacing paper, it actually does a lot more than just that.

The problem with such an expensive device is the fear of dropping it, for me at least I don't think I would be comfortable using it on a daily basis. It must be a great device though, too bad the local electronic stores don't have them on display.