SoD was proof that injecting massive amounts of gold into the economy does not cause runaway inflation
Everyone was rich in SoD and everyone could afford to run max consumes, get their gear, etc. Sure, if you had just started a week into phase 6, you were going to be behind, but part of the beauty of SoD was that it was easy to catch up.
You had a hundred different ways to make good efficiently. Every profession was able to generate a ton, and there were told farms galore available to every class.
We even had the incursions incident. Tons and tons of gold was injected into the economy and despite people trying to convince themselves that it sent prices through the rough because, surprise surprise, level 60 materials saw a spike in price at the start of phase 4, this didn't happen. Prices inflated slightly as they always do when demand rises. Any momentary spike subsided quickly.
And the game was better for it. It was enjoyable to farm gold knowing that herb you picked in silithus wasn't going to sell for 6s. And yes, you could actually take herbalism/mining in SoD and make a ton of gold. i made an alt for it myself. Instead of having to spend all my free gaming time trying to keep up with consumes, I found myself helping guildies more, doing old raids, discovering cool farms, engaging with the new content, etc. it was great.
Long live SoD, the greatest version of WoW ever made.