Azerite equipment is currently balanced around being able to unlock the outermost, earliest tier of power immediately upon acquisition, while delaying further advancement until the Heart has been further empowered. For example, the first piece of Azerite equipment, gained shortly after the Heart itself, is fully empowered once the Heart of Azeroth has reached level 3. A character at 120 (the maximum for the expansion) may find a piece whose first tier requires the Heart to have grown to level 12 or greater.

The Escalation patch has introduced several new scenarios with respective heroic modes that provide shiny new loot. It is still too early to predict which of these will demand the highest prices at the auction house or AH, since it can take weeks for players to work through the content and determine the value of the new drops compared to the existing items. Many expect the rarest and most prized drops to start commanding handsome prices starting June, so just keep your eyes peeled for popular WTB requests in general chat and high-selling items at the AH.

Is there still the requirement to level previous expansions with the new system? TMK, old enchants don't sell fast. Unless the changes to leveling have caused old enchants to start selling (anything for a little more dmg and speed, right?)... For the health of the game I think this is a good change but I wonder why anyone would go back and level previous stuff, save goblins and completionist.
That's mostly it, but it's linked to the fact you can transmute ghost iron bars into trillium bars, which can be transmuted into Living Steel. So ghost iron is really really useful for sky golems and panther mounts, because they require 4 Living Steel's, which means 24 trilliums or 240 Ghost Iron bars, if you wanna go that way instead of farming the trillium itself!
I have been playing since 2005. I have never really relied on the auction house to make my gold (I don't have the time, what with me having a life and all). In fact, I hardly ever use it. But as the years went by, I've always managed to get my gold total to progressively increase with each expansion. Not so with BFA. In fact, my total has actually gone down since BFA launch. Is this normal? Yes, I have been buying items from the rep guys, but I do that with every expansion. My gold started stagnating a bit before BFA, but since launch ... wow! I guess I can kiss that dinosaur mount goodbye!
well reforging does the same thing, upgrades from profs make economy more alive and profs thenselves more usefull, by this logic we should also remove gems completely and posiibly flasks also...+ i never wrote anything about enchanting every piece of gear, just leg enchants from LW, cloak embroidery from tailoring, extra socket on wrists from BS and also weapon enchants are coming back I suppose (which is nullified by removal of neck enchants), this really isnt a hassle imo

I make about 60% of my profit from old world item sales, and 40% from BFA sales. What BFA provides me that old world items don't is immediate gratification- If someone posts a stack of 200 monelite ore 10% below market value, I can immediately buy and repost for 2k profit and have it sell in 2 minutes, and do this 20 times an hour. I currently have 2000 pieces of ghost iron sitting on the AH that aren't selling, and since I put it up I've sold plenty of flipped BFA materials. Ghost iron absolutely sells at a high rate, but it is slower than BFA mats.
I think that's server dependant. I make a lot of Golems, but the price on my server is high enough that you could buy all the living steel and still make about 20K (almost 200kg on AH). Its just that you proc all the way up the chain. You proc 20% of your trillium, and then 20% of your living steel. SoH and Ghost Iron are such low effort farms, too. 20% of 180 Trillium Bars at 500g is 18k more profit, 20% of 150 Living Steel at 3500g is another 105kg. That's an extra 25k profit per Golem. If they stop selling stockpile them for the next expansion, they always boom with the price of herbs. And a consistent 20% proc rate is the opposite of RNG, its extra free stuff as a benefit to completing an extra quest (not to mention for new alchemists the investment of leveling Vanilla Alchemy). You're looking for some get rich quick scheme, where the real way to build wealth is patience and volume. No market is going to be viable because you want it to be. Only because you make it viable.