This is the way, the truth, and the light. If it's not rare, you have it because why wouldn't you.

Inventory facism is so early 1980s. It's a hold-out from the whole adversarial GM shite. It's much more fun for players (and GMs) to assume the characters are competent and moderately well equiped unless scarcity is the point of the adventure. Let your players have access to their skills / magic / specials and play to the best of their characters' abilities!