Sure a ton of things have ways to bypass this ability now a days (and especially with ex's inviting more non-rulebox stage 1's and 2's into decks), but it's nice to have
PSA 10 sales reflect values in the high six figures, with Gem Mint populations around 40-50
Aetherflux Reservoir is the missing piece to any number of infinite lifegain combos, offering an out to end the game instead of just setting yourself to 1,000,000 life and hoping your opponents concede
Well, if PokeBeach is to be believed, that sale actually did happen, and the guy who bought it scored an even better one after that
However, despite the increased pull rate for Art Rares, getting the specific Pokemon you want remains difficult