That makes now a great time to buy them
One of the best indications of this strategy can be found on the card Judge Magister Gabranth, which will become stronger each time you sacrifice a creature or artifact
Youre not going to get a better ramp option in white, and it even draws you two Plains to kick things off
They quickly gained my trust and I highly recommend them to anyone looking to appraise and/or sell their own collections
This card has wonderful pacing and can be played or benefited from at any stage of the game
Then you can discard two cards at the beginning of your first main phase to return this to your hand from your graveyard, which is card disadvantage naturally but with madness, lands, discard triggers like Archfiend of Ifnir, and loads more, it's got value