Supply and demand is key. I've seen the market boards on Primal and Crystal, and both are their own kinds of different for what you're looking for. Housing is more popular on Crystal, therefore the same table that's 5k on Primal is 30k on Crystal. Raiding is less popular on Crystal therefore foods and potions are worthless for profit in comparison to how much they'll cost on Primal.
People are the real trash for not understanding cost of production, and payment for time spent.
