I've been thinking this, as there's been few gold-related threads going again. How do you use your gold? Do you hoard it or spend it all in something?
I have few hundred thousand gold, but i never really farm it or do AH business, i only sell things in AH if my bags are going to be full. I never really buy anything (mounts etc.), most of my gold goes to repairs and few odd transmog item (if i see one with low price...). So i just slowly earn more than i spend.
I have banks full of crafting materials (collected when leveling etc.), so when i changed my main character's professions, i just used them and spend only like 200g in AH because i was too lazy to really farm one stack of ie. herbs for few skill levels. If i need enchants, i just make them myself, i have bag full of enchant materials anyway from green drops i got from leveling/dailies. Gems? Same thing, i can craft anything i need, no gold spend in AH. I'm just some LFR hero so i cba to use flasks/potions but if i need them, i just make them myself.
But even if i have more gold than i could ever use, i feel that it's MY gold. I have made it myself, and it belongs to no-one else than me. So i'm not giving gold to anyone. (last time i loaned gold was in classic) Lol, imaginary money really is serious business. Oh fuck what a miser i am...
So i'm just self-sufficient miser. This applies to every game, i never spend that much money in single player RPG's etc.
Edit: meh, of course i also spend gold to transmog and reforges too.