There's been a couple of posts in the last few days, about VA's, and other flight groups.
The chances of getting a few folks together that share the same enthusiasm for a particular style of flying are slim, at best. It's hard starting and running a VA.

What's your opinion?

I have a very good friend in Toronto, with whom I have done a bit of online flying and all I can say is that it heightens the experience so much to do things in this manner.  Flying with Mark was my first try to do some heavy stuff in formation, and its was intense, to say anything. I look forward to more of it, now that I can get better screenshots of the action.....previously I have flown online with a Cessna 152, Lake Renegade, Stearman, Tiger Moth, Waco Bipe, Mudry Cap 10, and quite a few hours on my little Zenith Kobra....
Here is a stunt we tried in twin Zenith XL's.....my friend Ken (thats his name also, Honest) is on the runway in the whitewings and thats me above, inverted with the smoke on...........

This is a shot of our climbout after a formation take-off.....concentrate......its 3D out here with a pinch of speed variations thrown into each dimension also....

And here over the skies of Buttonville we played in formation with the Tiger Moths........

I fly on the Bushnet server with the group there. We've even done SAR missions and other cool stuff. Loads of fun!! 8)

If you're interested head over to the Avsim forums, you will find it