I have the same feeling. That also might have to do with that I earlier was a DJ that played regularly on different underground electronic parties. But the thing talking against that is that the music I listened to at home has never been the same that I've been playing when I DJed.

The conclusion that I've made is that before i had to _curate_ my own music. Go and search for new releases, download new and totally unknown stuff that I later went through and actually listened to. In a way the whole "setup" forced me to listen to new stuff. Now that I have everything online, i more and more just tend to listen to the same stuff that "i already know" over and over again, hence it gets more and more uninteresting to actually listen to it.

In a way I have everything available, which makes me not forced to go out and search for the music I like and find interesting.

edit: A lot of talking about recommendations and music discovery further down. My input on that; I'm fortunate to have been using last.fm, even from before they changed name to last.fm. So I have a large history in there. That is the place that gives me the best recommendations and discovery so far. Their recommendations are spot on, and a good way to find new and good music is to go to "people like you" and see what they are listening to that is unknown for you.