Id buy these for the new cards and the reprint value, but I wouldnt stockpile them as an investment
First, you have to beat a bot, Sparky, a few times
Altar of Dementia is one I always pack in a deck like this, because it lets you play my favorite reanimator card: Living Death is great in a list like this, because all of the creatures you sacrifice to it will create token copies, which makes it hilariously one sided
A fun detail of this card is that changing creatures into cowards removes all other creature types, letting you wreck your opponents' tribal strategies even while you deploy your own
Its greatest upside is the lack of a mana cost in that activation, so you can drop your big Feral Thallid and hit the ground running for no additional mana
Would you rather have lots of ways to duplicate Minns tokens or even Minn herself