A phone has great battery life and standby power management. What’s the problem with running a different OS on it if it works just fine?
Different stuff for different folks I guess. At work all files are on the cloud, I have a NAS and a computer I can remote into for development. A Neo is just perfect to make all of that mobile.
As for tablets, I’d only recommend one if you need a stylus for drawing or a smaller form factor. I think that is the market where the Neo is competing, that is where you have a point.
A 13" iPad Air with 8GB RAM, 256GB storage and a Magic Keyboard is $1648.
The iPad has a notably more capable CPU, for over double the price.
An Android tablet isn't a capable replacement for a MacBook/iPad. (And I don't know that you can get even get any 13" Android tablet with a reasonable keyboard case for a discount over a MacBook Neo.)