Comment by nine_k

A stream of small changes is easier to migrate automatically, so you rarely see a need to update something by hand.

But when you do, the change is small, so you do your adaptation in 5-10 minutes, and continue with your day.

This is in stark contrast with upgrading from an LTS version, when the changes are sometimes drastic, and the changes are everywhere, so it takes some time to even figure out where to start. Because of that, such upgrades may be postponed, snowballing out of hand. I have a box that still runs old-old-oldstable Debian because of that.

A rolling release avoids this, while also bringing you fresh software faster. I get new releases of Gimp or Emacs within a week, and of Firefox, or stuff like git, usually next day.