The argument has been made to me that this is the market value, and therefore, the vendors are only adhering to what others are charging, but this just wouldnt be the case if the products were left on the shelf for collectors to buy
It's still valuable later in the game as a 2-dropinstant
Magda, Brazen Outlaw is another fantastic, repeatable artifact tutor if you happen to be in red, too
Every turn you have a possibility of losing a life and drawing a card, and later in the game you can punish them really hard for not having cards in hand at all
These two rules together suggest to me that Calamity's Wake exiles itself, continues resolving, then moves to the final steps of resolution which according to 608.2m moves the spell to the owner's graveyard