You're unbelievable, A.S. Do you even know what a con is? Ever been to one? Who TF cares what fans talk about at such a gathering? It's for the people who attend; not the folks that have no interest in going. And not for nothing, but SV is STILL on the air. I attended an annual gathering for Northern Exposure fans about six years ago, which was a good five years *after* the show had been cancelled. It was hella fun, and I got to meet some very very cool people. AFAIK, the event still takes place to this day.
In case you missed it, the point of "MetroCon" is to provide fans of SV with an opportunity to actually *meet* other fans of the show, and maybe some cast and crew as well. Like a Star Trek convention, where people aren't overly interested in discussing Battlestar Galactica or Farscape (for example), MetroCon is *specific* to SV. That means that discussion of all things SV is encouraged. People can live, eat and breathe the show with other fans who want to do the exact same thing. Imagine that? The Metropolis fair isn't specific to SV, and ComicCon is even more diluted as it deals with all things sci-fi, fantasy and comic related. The SV producers don't even do panels there anymore.
Hope that explains where some people are coming from in looking forward to such an event.
*sigh*