Archeology WQ

[Azerate]

I'm wondering, is there any point in doing the same archeology WQ more than once? I mean, do you get the same reward every time, or do they give different rewards every time they are done?

For example right now the Suramar wq is active, which I had done already. Is there any reason to do it again? (And yes, the task is exactly the same)

[Dilbon]

Doing archaeology quests again gives artifact power.

[FuxieDK]

Are there archy WQs?

I have never seen any, and have done all the quests..

[Zyrinx]

They're not actually WQs, they're 2 week quests given by the Archeology trainer in Dalaran.