Yeah, especially at 91 since you can't do most of the higher level ones as they require quests out of your reach. Nats would still be decent money, nonetheless. 
I was looking at getting nature tabs, wouldnt natures be better/profitable?
Getting tabs for 99 would require a hell of a lot of legitting.
It can be done, I guess, but it's not really realistic.
how much experience per hour are fires?
I'm getting like 20k doing natures at 82 with all four pouches, but I'm graahking. I have no idea what you could do on a level three.

