Hmm, quite fine, really.
Overall income in 2013 in our little world - 500-700k gold. Though, overall benefits, assistance and gifts... think... 300-400k*
I do not like to actively earn gold in WoW, thus I do when I casually do things like old content or raids. Professions is more if people ask for assistance **
* 300-400k given to friends/guilds for various things such as tabs, flying, mounts, rewards, prizes for competitions, transmog gear and crafted raiding pieces.
** Many know I have all professions at max, and most of the old plans, so get a few requests for pieces/jobs.