One aspect that many collectors overlook is selecting the right cover size
There's no doubt that Shining Pokemon are head and shoulders above the competition when it comes to value, but each of those three subsets highlights a collection of incredibly popular Pokemon from Kanto and Johto
I would be happy to just play Professor of Symbology, Gnarled Professor, and Igneous Inspiration in decks of their colors
Plenty of buyers end up doing both: better print quality, texture, less likely to be damaged out of the pack, better box odds for rarities u/snookers, r/PokemonTCG That collector buys Japanese for his collection and English singles for his decks
This is another problem without a good solution, as we want to expand with "extra spell" mechanics, but there's only so much flexibility in card frame design