The so-called rarity makes things precious, so even in the guild's warehouse, not too many will be stored. Instead, a set amount is released each week to highlight the item's value. Otherwise, if you put out a few hundred at once, it would obviously not be worth much.
Sometimes, rarity and uniqueness create value that often exceeds the intrinsic worth of the item itself.
For instance, a level 60 equipment's value can be ten times what it was compared to a while ago. Similarly, if a transformation item exists in ten or ten thousand units, the value would vastly differ.
The Nightmare Warhorse that Starfire first obtained looked stunning at the time, but now in the era of myriad mounts, it seems just ordinary.
However, every time Li Yao participates in an event, team members would ask to set up a horse post to receive a temporary Nightmare Warhorse.