Originally Posted by
Accendor
Yes, it is still worth having more than one tailor, because you can still sell the damn WoD bags for over 1000g each and you can finish one in around 3 days (with your Garrison working), so with 3 tailors you have a passive income of 6k Gold/week. Actually it is closer to 9k, because in 3 days you make more mats than you need for 1 back, so all combined comes close to 9k.
Also the gathering professions are something that is useful on multiple chars (most promiment herbalism) because you can gather that stuff when you cross it simply while playing your alt. Something similiar goes for Enchanting, because you can DE Questrewards and Drops that you don't need.
But yeah, thats pretty much everything.