The weakest part, at least for me, was the clan tents. Not enough showed up (including any I had blood ties to).
Just a general observation, since I cannot speak to the Greenville games specifically: remember that clan tents are manned by volunteers, who unlike the vendors, are not making a living by traveling around to various games. Some clan reps can only make so many games a year due to work and the cost of going to games (hotel, gas, clan tent fees, etc.)

Also, a society may not have someone to represent them in your area, so no clan tent -- you could always check with the clan society and see if this is so, and then volunteer! We (clan societies in general) are always looking for volunteers to help out!

Cheers,

Todd