On a Tuesday in March, a two-node cutting of Philodendron spiritus-sancti closed on a Facebook auction for $82, including shipping from Indonesia. On Thursday, what looked like the same plant — same long, drooping juvenile leaves, same etiolated stems — sold on a US grower's Instagram story for $240. On Saturday a specimen with four leaves, two of them adult, went out the door of a Florida nursery for $900 and a waitlist position for the next available cut.
Three transactions, one species, an order of magnitude in price. Collectors argue about this constantly, usually in the comments under someone else's haul post. The honest answer is that all three prices are defensible. The dishonest answer — the one that drives the loudest arguments — is that any of them is the real price.