And here is the biggest weekend of all for Vintage Motorcycle Racing:
http://www.americanmotorcyclist.com/events/AMAVintageMotorcycleDays.aspx
And I have never managed to be there. One of these days. 
Ah Mid-Ohio. I was looking at directions and information wondering if it was Barber. Mid-O is much like Road America, not as nice in many ways, but the track and the atmosphere are similar. Or maybe Road America in 1998 is what Mid-O is like now. Fairly primitive grounds in many ways.
Here's the one I've been working for about a decade: Vintage Motorcyle Classic (AHRMA)
June 10-12 Hundreds of vintage bikes participate in road racing, motocross, cross-country and trials, club corrals, moving bike show and swap meet.
http://www.ahrma.orgI wish there were more sidecar racers.
So back to the original question which we have totally hijacked. Why is StockXpert a site that no longer exists? I have images there and have sales there? (notice how Leaf has tastefully dodged this one.)

Throwing a little fuel on the smoldering fire. I made more on StockXpert last month than IS! WHich means, more than PP on IS as well. This month StockXpert is ahead of IS. That's very sad for a site that "no longer exists".