Like John, I have no interest in a shindig that large. My limit is the Region 9 rally in Harlingen in April which should be several hundred rigs. I suspect I will even find that a bit too large for my tastes but they have a lot of good activities planned and I haven't been in that part of Texas before (on the ground).
Texas has good facilities for big rallys once the winter Texans have gone home. There are large numbers of parks with hundreds of full hookups that sit idle during the warm months. Way too hot for an International rally in July, though.
John W. Irwin
2005 Classic 28 "Sabre-Dog III"
2013 Silverado 2500HD Duramax/Allison LTZ
WBCCI #9632, TAC TX-10