By the time Spotify came to the U.S., my iPod was long retired in favor of a smartphone, and I could get enough data on my plan to make mobile streaming a very reasonable option. I haven't bought a track on iTunes in almost three years now and give Spotify my money instead.
I'm really curious about how Apple is going to address the on-demand streaming stuff. It seemed like Beats Music was going to be their entry in, but that's now being shelved. Apple tends to think big and music has been a huge part of their brand for 10+ years now, so I'm interested to see what they have planned for early next year. It better be good!