What are you going on about? I can take thousands of songs anywhere in the world AND when I'm around my home WiFi which costs way less than $80/mo or one of the billion free WiFi areas in the world (which work reliably and reasonably well) I can also access all my iTunes music. I can also do it through a data plan if I choose to. On top of that all of my devices are synchronized without having to do anything. You really have to work to gin up some kind of complaint about this. So to answer your question, yes, you're missing something.
I think that @carlgo gets it just fine. iTunes will continue to have value for some of us -- like him. Others may never run it again. Either approach is just fine.
The Red Cross has a saying for this: it takes all types.