For an opponent to have it late in the game, they first need to have had perfect threat assessment in order to not spend their answers earlier in the game
Every year, there is news about a new tournament that affects the interests of thousands of players
Local game stores often stock singles, sealed products, and exclusive promotions
Although Force of Vigor is not quite on the level of Force of Will, the card is still extremely potent as a sideboard card for a bunch of green decks
Conduit of Storms/Conduit of Emrakul: There aren't enough cards in this set that you would want to save mana for
Overall, a gold Pokmon card could mean you have a literal diamond in your presence, or it could mean you just have a cool-looking card and thats about it