If they're brought together as bundles a Gilded Lotus sweetens the deal as part of the Summer Superdrop in English and Japanese
On the other hand, ungraded cards are almost always cheaper
Art by Tracy Yardley, Mike Burns, Evan Stanley, Nathalie Fourdraine, and John Thacker Contents : 1x Generous Gift 1x Open the Armory 1x Fabricate 1x Deadly Dispute 1x Unexpected Windfall 1x Sol Ring 1x Treasure token Price : Non-foil: $29.99 USD Rainbow foil: $39.99 USD We'd love to stick around, but we gotta go fast
And yet, GameStop wont accept the rarest cards valued at over $500, either, Pokbeach and Polygon report
So, how does rarity actually work here
Dark Betrayal (**) is priced sufficiently aggressively to be pretty rewarding if you find the right opponent, but I doubt the right opponents will be very common