Skip: Abuse slinged at newbies for watching CS, reduce the conslusion of ARR to a series of disjointed bossfights and filling in the blanks in the inn later, roulette rewards SLASHED due to the time:reward ratio.
Unskippable: Newbies get their ending, I get a moment to refill my drink, and a stress-free source of a boatload of poetics and exp.

You want poetics that badly? Swap to heals or tank for the fast queue, and chain Aetherochemical Research Facility, I think it actually works out better per hour.
You want level cap tomes? Honestly don't think it's worth it. Just specifically queue whatever dungeon you like best in the Expert roulette for the current patch.