I like to listen to Coffee House at work. I have noticed that the variety is really lacking. I hear the same things every day, day after day. It has gotten to the point where I can't listen anymore because it is too repeative. They need to expand the play list and mix it up some more. Isn't that what we pay for?
You are correct - however, this has been the case with most channels for a long time. Go to dogstarradio.com, click on "most played artists and songs" at the bottom, then pick a channel. Coffeehouse plays their top artists about 60 times/week. Keep in mind that most channels have several hours of special programming per week, so you lose about 1 day/week for that, so divide the play count by 6 (instead of 7). This yields 10 plays per day of each artist, and 5 plays per day of a specific song.
Amazingly, the Spectrum is worse! It's called the Spectrum for a reason, but they play U2 and John Mayer over 70 times a week, and the top songs are played 5 times per day!
If you click on "search playlists", you'll see that for any given artist (such as Tom Petty), they simply cycle through every Tom Petty song in their playlist, in nearly a fixed order. It's all predetermined and automatic. Variety would take much more work.