Old fandoms?

You know how you have old fandoms - fandoms you still feel affection for but aren't really into anymore? How do you feel when that old fandom releases some new material and you happen to (or intentionally) watch it?

I feel a mix of things depending on the situation. Usually a bit nostalgic, sometimes a little sad that I'm just no longer into the fandom, sometimes I feel guilty and like I should try to catch up on what I've missed. Once in a while, some new material will rekindle my interest in the fandom.