Thanks for the welcome.
So far, it's been the seasons that have kept me involved, and the fact that the build preferences and meta shift every few months. It's looking like this coming season will be very similar to the last, but fortunately, I've found a lot of people here to play with. This should definitely help to keep me more interested than I was when I was primarily running solo.
Yes, I played D2 from 2001 until 2008, when I finally gave it up to start playing WoW.