The thing that often gets overlooked is that band members' lives change in ways that make reunion actually possible - financially, logistically, creatively. After a decade apart, maybe one person isn't touring constantly anymore, or they've paid off their house, or they've dealt with whatever personal stuff made them need space. Suddenly the stars align. It's not that they woke up one morning desperate to play together; it's that the practical barriers drop away enough to consider it.
There's also this weird thing where time softens the friction. Bands usually break up because people were burned out, or creatively pulling in different directions, or just sick of each other. But ten years later? Those reasons feel less raw. You're not the same person who was arguing about song arrangements in 2010. You've moved on, made other music, lived other lives. So when someone floats the idea of a reunion, it doesn't feel like going backward - it feels like visiting something you used to care about, maybe even something you miss now that the stakes are lower.
The money angle is real, don't get me wrong, but I think it matters less than people assume once bands reach a certain level. If they were already successful, they probably don't need the cash desperately enough to endure months of each other in a tour bus unless there's actual interest. What probably happens more often is that the possibility of decent money makes it worth having the conversation in the first place - it tips a maybe into a yes.