No master of tech but I believe the sonos advantage was that they made the "bridge system" easy & affordable for quality wifi speakers throughout the home.
Technology has advanced now many wifi speakers have bridge technology built in so if you want to stream the same thing from more than a few WiFi speakers at once you're prolly better off with bose now.
But sonos do sound great imo. Just hard to beat bose in any area of comparison.
It's all about the bridge.
Where's that confounded bridge