http://www.sundaymirror.co.uk/news/sunday/2008/03/02/dead-zeppelin-98487-20337451/Surviving members Plant, Robert Page and John Paul Jones were offered a guaranteed £100m each for a tour of North America and Europe after a million fans applied for O2 tickets.
But after extensive talks Led Zep - best known for the song Stairway To Heaven - decided against the moneymaking opportunity.
Guitarist Jimmy Page, 64, was keen to do the tour this year and was backed by bass player John Paul, 62.
But singer Plant, 59 - already worth an estimated £70million - wants to concentrate on his new success with US country singer Krauss. The pair's duet album Raising Sand went to No 2 in America and Britain and they are starting their own tour in April.
A band source said: "Despite the enormous offer, the decision did not come down to money. They always said they would do the one-off show and then see how they felt.
"Jimmy had enjoyed the concert in December enough to want to tour. He argued they still had something to offer. He likes the idea of another chapter in the band - the grown-up tour.
"John sided with Jimmy. He loved making music with the others again.
"But Robert wanted to leave last year's concert as their legacy. They had proved they could still do it and that was enough.