Like others have said, the incentives are in place. But I've already had all three tanks leveled since early July and I'm leveling dps jobs now. Most tank mains are the same, we've already long since gotten them to 70 and have no incentive to run roulettes them aside from maybe needing a cracked cluster.

When I wait in queues as dps there are still things to do. Hunting log, fates (you can have your chocobo out now) sidequest, even gathering to have some side money.