Here's an excerpt from an article on reunited bands, from the El Paso Times:
He [the editor or Pollstar] believes fans "are able to see through" a band that isn't a reasonable facsimile of the one fans know and love. He cited a club tour by Mick Fleetwood and John McVie under the name of their longtime band, Fleetwood Mac. It created "a real concern as to whether they had diminished the name," Bongiovanni said. A subsequent reunion tour with fabled front musicians Stevie Nicks and Lindsey Buckingham enjoyed "over-the-top success, so the public saw through that" club tour.