I've given you a few months worth of money but the lack of the Radio function for Sonos is really limiting my use of your service so I have decided to cancel my subscription and try out a competitor for a while.
I may come back if you add this functionality to Sonos but until them I'll just be watching from the sidelines.
My suspicion is that I will be waiting a long time as I believe that the reason you aren't working on this functionality is due to your new Spotify Connect system. I guess that system will probably have the radio ability and would therefore have an additional selling point over the Sonos system.
Oh well, at least I understand your reluctance to support the community request for this function.
From what I read in the press, Spotify seem to be losing subscription growth and market share to other providers, particularly Deezer which is eating into your market share. I hope you know why that is and are working on ways to improve your service. Good luck