I'm all for Apple making a slim and sleek iTunes, but it won't make me use it more. I became sick and tired of having to pay $5-20 for an album, or 69-99¢ for a song, if I wanted to listen to some new music. I signed up for Spotify Premium on launch day last July. I pay $10 and I can play Spotify through home audio systems, I can save the music for offline use on my iMac, iPhone, (and soon) my iPad as well, I can use it on my mobile, there is no advertising, it's 320kbps streaming, I can use Spotify abroad if I travel internationally, and I can listen to millions of songs for one flat fee.
For example, Passion Pit's new album "Gossamer". If I wanted to listen to the new album, I'd have to pay $9.99 in the iTunes Store to listen to it. But, since I pay $9.99 a month, I can listen to Gossamer, practically for free.
Because I can pay $10 a month for all the music I can pump into my ears, versus paying upwards of $20 for each album I listen to, I ditched iTunes. The only reason I have content stored in my iTunes Library is because I listen to Mac OS Ken's Podcast, and Energy 98's TLR Podcast, and I need it to put music on my iPod Shuffle for exercise.
I've practically completely ditched Apple's media standards, at least for music.