I have been for the past 3 years. We start in Ohio, and usually only make it half way through Kentucky. It is a fun experience, and everything imaginable can be found! Last year I ended up buying over 50 pounds of jewelry, as well as some really neat antiques. It will be tougher this year if we decide to go because of gas prices, but usually I am able to make a big enough profit on the stuff I decide to resell, that the trip usually pays for itself.
We have toyed with the idea of starting in Alabama this year, and heading north, but if we go, will probably just end up in Ohio and Kentucky again. Either way, it is fun, fun, FUN!!!
Here is more info about the sale...