I don't know! I'm sure that's part of it. And con.txt has always had a strong vein of small fandom love - I think there's been a Barrayar panel every year. The thing is, though, I'm having trouble with coming up with what the "mainstream" fandoms *are* right now! Sherlock (BBC show, never shown on US network television), Dr. Who (50-year-old BBC show, also never shown on US network television), Avengers (movie that isn't out yet) and maybe XMFC and Inception? I guess there haven't really been any new shows that hit the fandom zeitgeist recently - it's like in the 2000s there was this huge glut of SF-ish TV series, and now we're in a drought.