Have you ever dreamed of promoting your own shows? I'll bet you've even sat around at times plotting out your own bills, dreaming of how awesome it would be to see an all-star line-up of, let's say, Poison, Ratt, Tesla, WASP, White Lion, and Cinderella. And while that sounds absolutely horrific, I'm sure other people have done the same thing and had better ideas
But being a concert promoter is hard work. It can even be threatening to your life. It's not a job for the weak at heart and it's not nearly as easy as it looks. See, you have to deal with not only satisfying your whims, but satisfying the whims of both artists and their fans.
That's a whole lot of people to make happy all at once. Not everyone can manage that and in these specific cases I bring up to crush your dreams, even experienced promoters can run into some serious snags.