Sonos is giving away bridges with the speakers, at least this month. What is their suggested usage, when getting multiple speakers? I see that extending the Sonos' Network is one idea. Since connecting a speaker to an existing network connects, without a bridge, will adding an additional bridge to an area further from the main Sonos network pickup a weaker signal and allow this speaker to then pick up this weaker signal? I guess another way to ask the second part of this question is; Does a bridge have a better chance than a speaker to pick up a weaker signal?