I think what Sonos did there was fairly ok from a customer-interaction point of view, but bad from the environmental perspective. There is a difference between

I think what Sonos did there was fairly ok from a customer-interaction point of view, but bad from the environmental perspective. There is a difference between bricking a device and offering a trade-in program, or offering a trade-in programm. The former does not allow you to continue using a PURCHASED device (your property), the latter allows you to continue using your property or OPTING for the trade-in programm. Sonos didn't kill the devices without the customer OPTING for the purchase of a new one. I guess it's kind of bad UX, but an offer to the customer. From an environmental perspective its obviously bad. Bricking kills reuse in a second hand market and is an insentive to take working devices out of operation. Yet, its not the first sketchy thing I remember hering about Sonos and I am glad I bought Teufel multimedia systems https://www.teufel.de https://www.teufel.de who I have no recollection of pulling any of these moves.