Who doesn't want to go to the beach for spring break ?
So dual meets in L.A. might work you figure and not to not to piss hole small college towns in the middle of no where.
But no, L.A. has dozens and dozens of rood races, marathons, youth meets, high school meets, plus the Lakers, Dodgers, Mighty Ducks, Kings, Universal City, Hollywood, etc. to compete with.
Face it for the fan who buys tickets, there's to much to do in L.A.
For parents, coaches, siblings, friends of athletes, they have their own meets, mileage, coaching, etc. that they have to do on weekends to stay competitive.
The only T&F meet that can sell out in L.A. is the Olympic Games.