Theory I hear is that these older bands who are hitting the road again are only doing so because they're the last of the bunch to be squeezed by the testicles on royalties so they need the cashola, putting their labels in a position of power. Record companies bankroll the tour and set the ticket prices to levels only said 30+ types with disposable income can afford and are willing to pay for nostalgia. Basically, they're squeezing every last $ they possibly can out of the old way of doing business until they're absolutely forced to change, like Big Oil.
Truth is, in some ways the landscape will be worse; music is more conveniently available with stuff like Spotify but the artists actually get less per record company $ than when they were getting a CD %. Subscription music is fantastic for the consumers but utterly **** for the muso's. Nothing wrong with being forced to play live for your coin but with the former stars having to tour and taking up a bigger slice of the live show pie, newer acts don't even get a look-in any more.
Frankly, I know of no muso's who started > 2000 who are making money off their music any more. Some license, some rely on playing covers/corporates, some merchandise, most are in Struggletown. And if anyone mentions the words 'crowdfunding', 'Palmer' or 'Amanda', give yourself an uppercut.