As an example of a classic rock station that doesn't play the same few songs, there is 95.7 the Ride in Charlotte, NC:
http://www.957theride.com/
There is some R&B and some soft oldies that would actually fit in a standards format, but this station has been described as being like "progressive rock" in the 70s. This one man owns it and seems happy with the money he is making and won't make changes. We don't know how they're doing because Arbitron no longer lists it, but it wasn't doing so badly when ratings were shown.
And to correct one misconception, in commercial radio the advertisers are the customers and we listeners are the product.
YES! I had replied to Big A's earlier post b4 I saw yours!