The bridge has another use, beyond allowing the requisite hard wire to the router. If any Sonos component is too far from its nearest neighbor to allow solid wireless interface, a bridge can be used to "bridge" the gap. This is particularly useful if your home is already wired for a traditional centralized distribution amp. You just stack your Sonos zone players where the distribution amp was and connect them to the pre-wired in wall speakers. Hand controllers can live in every room and strategically placed bridges will allow the controllers to speak to the central stack of zone players, even if they are far apart.
Marty
Marty