Providing firmware-updates and spare-parts (especially batteries) should be a requirement for all-purpose-computers i.e. laptops and desktops. And also for smartphones with user replaceable operating-system. For devices which are only appliances (smartphones with boot-lock and worse) this also extends to the operating-system itself.
This makes devices more expensive? The prices will be higher but the value you get also. I'm talking about companies which uses adhesive strips and unusual screws with tiny buckles (Apple - iPhones) or the ones which glue the display onto the baseboard (Google - Pixel). Or companies which used to provided user-replaceable batteries with notches, which now uses screws inside the device (okay!), but now also a firmware to ensure that the user won't get a replacement battery some years later (Lenovo - ThinkPad). Otherwise Lenovos ThinkPads are good example, step-by-step manuals, explosion diagrams, well maintained replacement-part numbers...and yes, more expensive.
This makes devices more expensive? The prices will be higher but the value you get also. I'm talking about companies which uses adhesive strips and unusual screws with tiny buckles (Apple - iPhones) or the ones which glue the display onto the baseboard (Google - Pixel). Or companies which used to provided user-replaceable batteries with notches, which now uses screws inside the device (okay!), but now also a firmware to ensure that the user won't get a replacement battery some years later (Lenovo - ThinkPad). Otherwise Lenovos ThinkPads are good example, step-by-step manuals, explosion diagrams, well maintained replacement-part numbers...and yes, more expensive.