When they were "new" the tech was old already and then the lack of drivers for the camera for example which I can't talk, I'm not a driver developer. I thought it would make me get into developing drivers but I never did.
Or writing Qt/C++ apps vs. cross platform/web that I was used to.
For some reason I was obsessed with the thought of Dex/your phone being a computer if connected to a big monitor, it was cool using VS Code on the PPP but there would be problems. The external monitor I think was capped to 1920x1080 (if connected to a 1440P display a huge chunk was just static)
I had my fun with it
I was interested in the Pine 64 eInk tablet but that seemed to not be in stock at the time. I had the Remarkable 2 at one point, I want to get it again.
edit: looks like the PineNote is in stock right now
my consumer brain is getting tickled, might get a PineNote, what I liked about the RM2 is I didn't have to charge it for like a month was crazy, unfortunately PineNote doesn't seem to have that, and no tilt support on pen but ehhh. I don't know if RM forces you to have a subscription now, I didn't have it on mine when I got it in like 2022.