For a less expensive, equally fun, alternative red rocks experience….

load up a backpack with beers, bring a blanket, wear closed toed shoes, and hike up the hill behind the amphitheater. It’s free, you’ll meet lots of randoms, and the sound quality is great. If you go up high enough you should be able to see the stage. I strongly reccommend finding your spot before it gets dark, there are lots of little cactus that can make for an uncomfortable experience. The drunken hike down the hill is an adventure in itself.