farmed for an hour and got 66 motes, i found it was about a mote a minute and that was with another occasional farmer. I did it on my normal epic mount, so it would be alot faster if it was on an epic flying. primal airs sell for about 35g on my server, so its about 200g an hour on my server, which aint too shabby, however it is very VERY VERY boring work... but good job +rep
EDIT: tried again later on and got about 80 in 45min, that was when nobody else was farming them, it was about 2 am server time... which is good because that is about 7pm for me
Nerdywow!