"I thought about it, but everybody is doing it now," said Daltrey. "I don't know whether we need it. And it's only a gimmick. We were very good on gimmicks in the '70s, but I think we can leave it alone now."
He also said the band did not plan to have guest singers as it did on its previous tour.
The double album "Quadrophenia," released in 1973, was The Who's second acclaimed rock opera ("Tommy" being the first). Written by Townshend, Daltrey called it "Pete's pinnacle."
The band will play the album in its entirety.
A documentary about the making of the album, "The Who: Quadrophenia - Can You See the Real Me?" will be shown Tuesday in theaters across the country (see inset for local screening).
The London Olympics starts July 27 and runs until Aug. 12.
The Who's Olympics gig will put the band on an even bigger stage than its halftime performance at the Super Bowl in 2010. Daltrey said the closing performance "is not about The Who being on a TV show, it's about making great music that is apropos to the end of that event. . . . I'm extremely proud of it."
Townshend said he is working on new music, but he added: "I don't know whether you can rubber-stamp it as Who music."