Sometime in the next two years, barring tragedy or a worldwide economic meltdown, Led Zeppelin will mount a very lucrative mini-tour of the world and attempt, once again, to shut people up. Despite the fact that they have reunited and played several times in two different incarnations--why people don't view No Quarter and Walking Into Clarksdale as Led Zeppelin reunion albums is confusing--the world simply cannot live without a reunion.
This is the fat cat tour, and there will be few, if any, "fans" at these shows. There will be a lot of rich people who want to be able to say that they saw Led Zeppelin; tickets for these shows will run wild. Never mind that, in the 1970s, these people never bothered to go see the band and preferred the Electric Light Orchestra or Three Dog Night or Foghat instead.
If you can be charged over $400 to see Rush, I would imagine that you can expect to pay $1,000 or more to see Led Zeppelin.
How does that square with the economics of a festival like Download? Are they going to charge everyone that much? If not, how are they going to afford a reunited tour of the three surviving members of Led Zeppelin?