I was wondering the same thing about Iron Maiden the other day - they seem more of a merch company than a heavy metal band these days.
You can get Iron Maiden beer, Iron Maiden wine, Iron Maiden sunglasses etc. let alone the common merch like T-shirts.
Given many more people can buy merch than can buy a concert ticket (which has inherently limited numbers) I wonder how the two revenue sources compare.
Poor take. In the last three years alone they've played over 100 concerts. Their set is two hours. They're all in/approaching their 70s. If that's not a band, I'm a pterodactyl.
It's the same with the "Star Wars" brand - the biggest chunk of revenue comes from merchandise and licensing, not the movies/shows. Lucas famously became a billionaire by securing merchandising rights in his original contract, not because of the cultural impact of the franchise.
Kiss too. Kiss was a merch juggernaut.