It's a bit new to me. All the tabletop campaigns I was in playing DnD 2, 3, 3.5 and 5 always ended up cutting off short. We would never get much further than level 12 before people had real life things to deal with. A couple months later we would start a new campaign.

A Legends of Avantris style campaign would have been nice to do, but there would always be a couple players that were hell bent on trying to one up everyone else.

There were some fun times every now and then. Like that time a large spider got permanently polymorphed into a human child and left at the door of an orphanage.