I think CDs will be here for a while because adults that earn money still use them. Younger consumers are starting to skip physical media. Pia Toscano, for example, the singer from American Idol has several singles out but never published them on a CD. mp3 is the only format available. A sad shame for an artist with a body like that.
Adult music is still all available on CDs.
I understand you bailing on Logitech, I did too when my Duets simply would not work no matter what we tried. Sean was gone and the whole Slim Devices vibe was becoming the Logitech borg, which brought back bad memories about using logitech computer peripherals. There was so much wrong, I couldn't see how they could fix it all in a timeframe I could tolerate. I was right, logitech users are still complaining to this day about that same BS issues, although I hope it is somewhat better now.
I switched to Sonos and still happy with that decision. It is reliable, doesn't crash, great tech support, self contained server, fast library scans, self update, intuitive interface, wireless mesh network, lots of great features. After 4 years of ownership I still recommend it.
When Sonos first came out, smart phones were an exotic toy. The Sonos controller was a nice feature and showed album art and graphical interface for controlling the playback. Nowadays smartphones laptops and tablets are everywhere so the Sonos controller is unnecessary. This allows a person to get a Sonos "Connect" line level hardware player for 349 and control it with their phone. That's a lot less than the package deal I got for 1200 with player, controller and amplified player. I'm sure the new Sonos controller is very nice, but you can add that later if you like the system, or get an ipad instead.
The advantages of this type of audio source have been covered elsewhere. But I'll just add that having it all in one smart box that never screws up and can be easily programmed to play internet radio shows on daily schedule or months ahead of time for special events makes Sonos a step above the rest. Not running a separate server application on a different machine is worth the Sonos premium, but now the prices are the same. When you factor the cost of a slimserver host, Sonos is cheaper. It can source files from any dumb fileserver, typical 2TB NAS (6000 flac CDs) for $170 nowadays. I spent 1500 for a smart NAS 5 years ago, just so I could run slimserver on it without an extra PC.
I wish the Sonos digital output had less jitter. I wish I had my own iPad. I wish Sonos could run plugins. Nothing's perfect. But compared to the frustration of Logitech hardware players I have found the Sonos to be very satisfying. My DAC ignores the jitter and my laptop is always in my lap anyway. The plugins I want to run could never be powered by Sonos puny brain. So all is well. Except for the rats nest called my music library. Sorry for the rant, I rewrote it to make it shorter, but maybe I should get a job as Sonos salesman?