FATEs at 80 -

[Malmstrom]

But not the same amount of time. Presumably you'd be completing FATEs way faster in level 80 gear.

Also seriously, how many bicolor gemstones do you need?

Then you limit yourself to the monotony of being in one zone the entire time, since the Tempest is the only Zone that won't force you to level sync. That and the lack of combat music makes it get dull quick. I can jam out to that all day, and have while farming. Plus you illustrate my point my asking how many gemstones we need, because if you don't need that many, why do them at all? That's the issue. There is no incentive. There is nothing extra for doing it at level cap. I'm not even asking for something crazy, just something a little extra that makes it worth doing.