With each new version of iTunes, it gets harder and harder to toggle browse mode. Do people not like to browse their music? Without browse, iTunes' usability is roughly equivalent to the original version of Winamp...I feel like I have no idea what it is people do with their music.
Similarly, unless you know what you're looking for already, it's basically impossible to find interesting new stuff to buy on the iTunes store, or on Amazon for that matter. When I heard that Paramount's movies were added to the iTunes store, I rushed over to check it out, only to find that it was basically impossible to browse a large selection of movies.