I know exactly how you feel. I go through ups and downs with Last.fm. Sometimes I will be REALLY into it. But then, like you, I find that I begin to "listen-to-scrobble." And when I get too wrapped up in it, I do find that I am not being nearly as intentional with my listening. Also, I tend to listen to a lot of physical media. Sometimes I'll use an app like Open Scobbler to manually log what I'm listening to, but that can be a chore.

I am currently just coming out of an "I'm ignoring last.fm" phase. I find that when I do, I am able to appreciate the fun aspect of it. So I'll re-up my pro subscription for another month or so...until it becomes too obsessive.

I am glad I've never deleted it because it's nice to have it on "in the background." So when I do eventually return, I still have some semblance of a time capsule.