I really don’t get why people want Sonos speakers in the first place. Linking together two pieces of technology with different lifespans just seems silly.
Speakers are mature hardware. Sound is not going to get better any time soon. They’ve been about as good as they can be for decades. A good speaker and amp might last you 25 years or more. WiFi/AirPlay/etc is new and changing. Don’t put these two together in an inseparable product!
It’s probably the reason Apple never released that smart TV everyone was expecting - it’s just better to have a TV that you can keep for years + a less expensive box you can replace as technology changes.