Remember to NOT disenchant ALL of your quest rewards and drops. There is a new Blood of Sagaras in BfA called "Expulsion" and it is used in all primary tradeskills and it comes from using the Scrap-o-Matic 1000 to break down the piece (explation below). In alchemy you can learn to transmute it (Transmute: Expulsom, which generates 5 Expulsom per day from 10 Akunda's Bite, 10 Winter's Kiss, and 3 Anchor Weed). So some pieces may get more explusion from them that they give dust/shards.
WOTLK and Cata were my goblin training grounds as well (I remember fondly making 30k on a single day after a patch day with Inscription), but since Im only at Legion levels, Im struggling to find oportunities where to start invest and make profit. I've been carefully paying attention to the market and picking small batches of mats to flip. After 6 yrs out im slowly starting to pick up (so far i think i made 100k in a couple of months).
A: The gold value of a Token will be determined dynamically based on supply and demand. When you put a Token up for sale, you’ll be quoted the amount of gold you’ll receive upon a successful sale. If you then decide to place the Token up for sale, that amount is locked in, and the gold will be sent to your mailbox after another player purchases your Token.

Set sail for the previously unmapped isles of Azeroth. Battle in groups of three as you race against cunning rival intruders—or enemy players—to collect the island’s resources. Constantly evolving challenges await as you traverse frozen landscapes near Northrend, open the gates of an abandoned Gilnean castle, navigate a war between elementals and more. Tides of Vengeance adds two new Island Expeditions to the mix and two new random events, as well as updated rewards.
A: The amount of time it takes to receive your gold after putting a Token up for sale depends on a variety of factors, including the current supply and demand. When you list a Token, you’ll be quoted an estimated time based on the current Token supply and the rate of recent transactions, but the actual amount of time it takes to sell is likely to vary (note that Tokens do not expire). In most cases, Tokens are sold in the order in which they were put up for sale; however, there are some exceptions to this, such as when a Token purchase is undergoing verification.

I'm pretty excited about where the various gathering professions could go this expansion. Crafting expansions actually have good stuff to craft to prepare for the upcoming raid so gathering items will be needed. On top of that nodes are giving out less so more effort equals higher prices. Now where this goes past launch I'm not sure but stuff like Mining and Herbalism should be solid at the beginning.
That's where i'm at now. I got into it late. I had 40k to start. Sold fish up to about 100k total starting capital. Started making and selling decks when they were going for 80-200k on my server. Morons have repeatedly undercut decks by 30-60k at a time even after the market has been reset (not by me) multiple times. Now the decks are 25-80k... I did manage to make 3.5m gross in the last 2 weeks. Now the individual cards are selling for MUCH less than the decks so I may stop crafting myself and just start buying the individuals... idk where to go from there though. Do you think the decks will hold any value moving forward? I'm kind of hoping for something similar to obliterum in legion to increase the ilvl and keep them relevant.