Most junk-flagged items trade near vendor price, but a handful of gray transmog pieces carry genuine collector premiums.
Junk (Miscellaneous)
Auction-house prices and price history for Junk in WoW Forever.
1,275 items in Miscellaneous › Junk are currently auctionable in WoW Forever.
Prices refresh as beta players scan from players running the Booty Bay Broker companion, so a ruleset nobody has scanned yet carries no prices at all rather than stale ones.
Junk listings link to price-history pages with per-realm buyout, average, and median data for WoW Forever.