I agree with CA-Libertarian. While Bass Pro and Victoria Gardens offer us a venue for our purpose, it does little for those who are sitting on the fence, a lot less for those who are on the other side of the fence.
While it is a good idea to get together and preach to the choir, I would like to think that doing this in a place where there are more exposure to those on the other side, the media, the curious, and other onlookers will do a lot more to our cause.
One, in time, it will help de-sensitize those who are opposed to the idea of gun ownership. It would be a great victory when some staunch anti would one day say, "Oh, it's not that bad after all", or "I realized it's not like I thought it was".
Two, there will more chance that the people who would actually come and ask for information are those who either don't have it and just curious, or more importantly, those who are thinking, considering, and is about ready, to cross to our side.
Not to undermine anybody, but in this fight for "recognition and better understanding" of the 2A right and the gun owners as a group, I would rather sit on the table and convert one anti and help him/her buy his/her first gun, than have ten avid gun owners sharing a corndog with.