One consideration I have on every purchase I make is that I own it, like actually own it (with exceptions where necessary, of course). Internet access in something that shouldn't need internet access is a downside. It's a way to mess with the purchase you made.
If my e-reader had a bad battery after years of use, I should be able to replace that battery myself without issue (personal skill allowing). I purchased it. Why wouldn't you be able to? I haven't yet found reason for this in consumer devices, except because they want you to send it in or buy a new one from the manufacturer.
Every time we see something like this, it doesn't get enough eyes or care from those who use these platforms. Sony takes your movies away, Xbox requires you be online, Amazon updating your books automatically without asking you, etc. My favorite that I repeat constantly is all of the BS that BMW has done over the years: heated seats subscription, proprietary bolt heads, ads in the infotainment. If you buy a BMW at this point, I'm sorry, but you had alternatives and I don't feel bad. The scary part is when enough people accept it that everyone else in the industry follows suit and then the outliers are the ones that respect you.
If I purchased a physical disc, I'm not even asking for the source code (which I'd love), I'm just asking that I can run the damn software I bought, but you can't even do that now. Viva open source and right to repair. Make the educated choice when purchasing software and hardware, to your benefit, where appropriate. Of course, the proprietary system is what you need/want sometimes, but I bet most of us don't most of the time.