Well I'm not sure if it's really possible to get wealthy without player trading, I've never made that much gold from the ah except what I earned which was 10K+ via ah in a week, If the ah is a problem go to the source, trade with players face to face, this saves you time and money, frankly i prefer face to face with people because they'll more than likely ask for more so if they're a consumer you can continue to farm. I do know that returning to the recent xpacs to complete zone quests are the best way to get gold however, which is what I did back in lk when I was bored and broke. Each toon taking home 10k or more and being over geared made the quests easy... Quest reward vendor sale was what 20-30g per green? sounds like a win win lol