Yeah, Sony lost me when they broke my Linux install and degraded the DVD playback functions, within six months of me buying my PS2. Similarly, the last “good” smartphone I had, was the Palm Treo (650p\680p\Centro); since then, I’ve never had a single phone that granted direct hardware access & allowed unloading/sideloading the OS by default.
Manufacturers want deep control these days; way beyond mere root permissions.
I knew people with NiMh batteries for their RC cars\planes\boats, but the first time I ever saw NiMh AAs, was in a GameGear.