I've found myself listening to iTunes Radio far more than I expected.
Out of curiosity, how do the number of commercials compare between the two services? When I tried Pandora recently (but briefly), it seemed to have a lot more commercials than iTunes. iTunes never plays more than one at once, and seems to play only a few 30-second commercials per hour. Pandora was playing multiple commercials in a row when I was trying it. Anyone notice a difference?
(Obviously talking about the free version of both.)
Spotify is just like Pandora. 3 commercials in a row really interrupts the music flow. Paying $10/month is just too much for me. Hopefully if Apple offers a music service they 1) keep the costs reasonable, 2) not repeat songs