Pantera. Before the tragic loss of Dime. Played Walk and had literally every person at the venue on their feet with their fists in the air, as one. It was amazing to be a part of. Quite a humbling experience, really.
A guy I used to work with does 'fake festivals' with local tribute bands. Obviously they cost a lot less but can still be a good night. Big tents, bar, hog roasts and silly games outdoors etc. makes a pretty good low cost option for those who can't get to the big ones. Nowhere near the same though lol