That's why if you search on the used market today, you'll still see equipment from companies like Aiwa/Sony from the 80s and 90s simply because these speakers can be re-used even now as you can connect anything to them before the pre-amplifier and they'll still reproduce your source (iPod/TV/Computer/whatever). I posses a 40 year old Aiwa system that still functions flawlessly today like brand new. This is also possible today because speakers themselves can last so much longer. More than 40 years as you can tell.
All companies like Sonos do is add just another layer before the pre-amplifier stage - which is to make the speaker "smart". This is usually all those wifi chips and bluetooth and Google assistant and what not. This is the proprietary part of their system. Normally, you are able to throw away this proprietary part and still use the speaker system. But, in pursuit of more sales, to reduce the lifespan of a perfectly fine speaker system to simply increase revenues is the most hardcore, cruel thing one can do.
Sonos' speakers are so bad that many models aren't even serviceable. Meaning, you can't open them like you could on those Aiwa's and Sony's and put them back together. Once taken apart, they're useless. They use tons of glue, proprietary shaped screws sometimes even wire the speakers in such a way that they'll damage the units if you try to take them off. They purposely do this so their speakers can't be used anymore without damaging the appearance.
That's why I will any day buy a mediocre music system from Sony or LG than buy trash like Sonos. First of all, I know the quality of components they use is not that great. They use ordinary stamped steel, sometimes plastic baskets for their driver units as opposed to high quality aluminium construction. Paper diaphragms too. Their units don't even have proper crossover circuitry in some models. And besides, the drivers they use are actually based off rebranded generic Chinese, just tweaked a bit. They're very good at fooling people pretending to be an audiophile company. In reality, they're not even half as close to the stuff from the 80's and 90's.
So, having ranted this, there's literally no reason to support such terrible ethics backed company simply for the sake of their profits. Fuck Sonos and get a Sony (or whatever else you like that doesn't do this). This is not just for the environment, but to set a full stop to such terrible practices. The audio land is already so full of snake oil already that the last thing we need is another snake oil sales man like Sonos.