What is the best section to sit at NRG Stadium for RodeoHouston Concert?

My wife and I will be in town and want to see Old Dominion at NRG Stadium. For the RodeoHouston events, is this screenshot the correct layout of the stage? Does it matter what sideline side I sit on? What sections do you recommend? I am leaning toward the first row of 507 or 510. I feel like that price is crazy good. But I also notice that the first row in the 500s on the opposite sideline are all sold out, so I'm curious to anyone if they know why?