Unlike the Burger King promotional cards, these Celebrations metal cards recreated iconic Base Set designs rather than creating new artwork
While it's true that there is a central entity in charge of production of these assets, the market for Pokmon cards is largely driven by supply and demand in the secondary market
Although other decks have strategies that can counter Amber/Amethyst play, the level of strategy necessary to do so is often higher
Those who have been playing probably already have a good amount of Shinedust to spend, but depending on the amount of duplicate cards available, it may be a bit disappointing in how Flair works
Some want as many creatures on the board as possible for a multiplicative bonus to each equal to their quantity
Some of the rarest and most expensive Pokmon cards ever created come from the 1990s, but that doesn't necessarily mean they have the best artwork