Yep, that was me, walking my self back to camp when they started... And I have zero regrets.
Firstly: I do not hate rap music... I honestly believe with how diverse the genre is that it's nearly impossible to say "I hate Rap" I like a lot of it. From Kanye, to Danny Brown, to Shad, Shabazz Palaces, YC the Cynic, Hodgy and Earl, Das Racist, and yeah, I like Snoop too. (there's a clue). So I have no beef with (good) rap.
Secondly: I totally get why people wanted to see them. It's a bucket list thing, groups to see before you're too old or they're dead or whatever. You have every right to like who you want to.
Personally, I didn't care that they were headlining from the time lineups came out. My payoff was going to see Justice, At the Drive In, and the Hives, the last of which was the first concert I ever went to)... Snoop was an afterthought, and I literally could give two craps about modern Dre. I knew there'd probably be some sweet guest stars, and I was at Coachella last year for Kanye's massive celebration of what will wind up being one of the best albums of the next decade, but I just couldn't work up the energy to care about Snoop and Dre. Holographic Tupac seemed dumb and fanservicey, but I get that was kinda the point.
It felt like it was a celebration of what Rap used to be, rather than how amazing it is currently. Seriously, 50Cent? Come on man.
besides, the line at the camp showers was super short, and I could hear the set from camp anyway.