I hate itunes, but I've seen markov chains that were significantly more insightful.

I've hated iTunes for over a decade now, and that's not just because it's horrible, bloated software with a terrible interface. Almost any other method of buying an album will send more money to the artist than iTunes does. If you like a band enough to buy their music, why not put a little effort into supporting them? (e.g. If they sell their album through their own website, use it!)

The fact my iTunes library contains a mere 4 eBooks today, where as this time last year it contained over 2000 various items is proof enough for me.

Is there any evidence of this at all aside from a two sentence opinion?

Evidence of what?