Containers

Bag demand is slot-limited: a character buys a few and stops, so volume comes from new characters rather than repeat buyers. Purchases are rare enough that the long-run price history says more than today's cheapest listing about whether a price sits at the material floor or on a spike.

Specialty containers sell to a narrow audience. A herb bag matters only to herbalists and an enchanting bag only to enchanters, so prices stay flat for weeks, then step when one listing clears. A profession bag holds only its own material family, but more of it than an ordinary bag, which is why dedicated gatherers pay for one.

WoW Forever, TBC Classic and Season of Discovery add quivers and ammo pouches, hunter-only carriers from the era when ammunition was used up shot by shot. Later expansions removed both along with the mechanic.