I love PAX South, been to every single one ('cause its impossible to get tix to West or East)
But I was at QuakeCon 2018. Its primarily there for the massive BYOC. The con is free if you don't BYOC.
Come to find out they have added a TableTop hall with a Checkout Library and D&D campaigns. All for free.
As far as Texas gaming cons, Its been in a bit of flux. RTX has been removing most of the games.
But its nice to see another Texas gaming con give PAX a challenge for best in my Lone Star.