Did an instance, nothing gave experience. (Level 50)

[Garlyle]

The high level roulette isn't really worth doing now. ... Low level is the same, but you *may* get into some of the new dungeons which can make it worth your while.

You're correct.

At the same time, you can do High Level with a preformed party of friends and zerg through it. Low Level, thanks to people zerging DRK/AST, is also one of the fastest queues DPS will ever have right now. So I do them; if not solely for the variety.