The difference lies in how money is made in each market
See, if you examine Summoning Stars text closely, nowhere does it say that the targets must be basic Pokmon
The deck that mostly uses this card today is the powerful Amber/Steel archetype one that has been prevalent in the Lorcana meta since the very beginning of the game and just as relevant today as ever
Creatures : Usually between 12-16, and that can be a metagame choice if small creatures are viable or not
Metal Energy Secret Wonders #130 Number Supertype Subtypes Rarity Artist HP Regulation Mark Types Retreat Cost Rules Damage done by attacks to the Pokmon that Metal Energy is attached to is reduced by 10 (after applying Weakness and Resistance)
Previously, Kaladesh Inventions, Strixhaven Mystical Archives, and Brothers War Retro Artifacts have all done similar things by releasing alternate-art reprints of old, high-demand cards