I was seriously looking at the Sonos system to play my MP3s throughout my house. First, though, I need to get my MP3s and other data onto a larger NAS system, and I was doing research to make sure that the NAS system I was going with would work with the Sonos.
It was at that point I ran across the deal killer for the Sonos. Those handheld controllers look sweet, but the Sonos system can only index a maximum of 40,000 tracks — less depending on how thorough the metadata on each track is (and I am very thorough with my metadata). That’s a pitifully low maximum number of tracks for a higher-end music system.
For that price I can buy a few Squeezeboxes, add a PDA with 802.11b for a remote, and search through 100,000+ tracks.