Travis - I agree with Jim, save your long trip for the National in Baltimore.
Frank - The Chantilly Show does not have as much vintage cards and memorabilia as the Philly Show, which is why I drove up to the Philly Show and back yesterday in the heavy rain and wind (even though I live only 10 minutes from the Chantilly Show). That said, I encourage you to attend the Chantilly Show, especially as you are so close, as there is a reasonable amount of vintage. FYI, at the Chantilly Shows during 2009, I acquired a N403 Yum Yum Tobacco, an E222 A.W.H. Caramel, and a T217 Mono Cigs among other cards for my collection; and I didn't see any N403s or E222s at the Philly Shows in 2009. And, I know that Dan M. & Scott B. will bring some great vintage items to Chantilly.
Jim - Thanks for not wasting your time going to the Chantilly Shows and possibly competing with me for these scarce vintage cards!!
Val