One of the most exaggerated things ever.
People be like "Hey this rock band (that sold 100 million records and was the biggest thing out when there was only like 2 commercial genres for 7 years straight) still touring, this rapper (that went gold once and barely charted in the top 100 from the 80s) should be on the same level!!"
Old rappers are still touring, Wu-tang and Nas had a big as show, 50 cent sold out tour, Jay-z sold out tours, Eminem if he does it sold out, Dre x Snoop first rappers to headline the super bowl etc. Diddy did his tour, JD did his tour. I mean this are heavy hitters.
Rappers that did small venues in the 90s are still doing small venues, why do people expect them to turn into Metallica because they are legends. Unless you were Metallica in your peak, you probably won't become Metallica when you "retire"
As far as old rock bands, they are not really selling major records unless it's the biggest of the biggest like David Bowie or Rolling stones and they can barely sell records like a random artist like Schoolboy Q (in the US).
Other than that, old-head talk, is just ordinary hood ninja bs.
Xzibit is just mad that nobody cares about his shyt, it's not cause he's old it's cause he's trash