Well, after Angel ended I stayed away from the Buffyverse and the fandom for more than 10 years, I didn't even watch my DVDs, or bought the ones that were missing (S6 and S7). I think life got in the way, the show stopped airing here, there wasn't anymore the Yahoo! group I used to post...
Then, in 2013, I was searching for shows or movies to see, and I realized that my cable company had Buffy S7 available, and I started watching some episodes - and BOOM, it all came back: Buffy, Angel, Spuffy. I really thought I had gotten over it, but apparently not... 😀 And then, I ended up here and reading the comics. And I finally bought S6 and S7, of course.
I think the same would happen if I had the chance to watch Highlander: The Series again - I loved it, but this show just vanished from TV and I don't have the DVDs (and neither the will to spend money on them now).