If you were to compare the prices of Lorcana cards to the prices of other games (Pokemon, Yu-Gi-Oh, Magic the Gathering etc.) you will find that they aren't worth as much
There are so many different Final Fantasy games from across four decades that are important to a wide swath of people for different reasons that the designers at Wizards had to have been absolutely swamped with possibilities
Necropotence probably would remind players of one of the best and most notorious cards -- Yawgmoth's Bargain
Specifically, artists have to stick to the placement of things in small thumbnail sketches and color roughs, painting directly on top of their early phases after taking reference, whereas they normally would create an entirely new drawing after a certain point
Volumes One and Two of Monty Python and the Holy Grail will showcase eight cards and a token
It's similar to skins in Fortnite - players can pay more to look fancy but there's no difference in actual gameplay