https://www.gamespot.com/articles/nintendos-new-switch-game-has-a-nice-eshop-pre-ord/1100-6459351/

Nintendo is famously stingy when it comes to sales and price drops on its first-party games. Until the company releases a Nintendo Selects edition of a game, you can generally expect to pay full price, regardless of how long ago it came out--especially digital versions. So it's nice to see Nintendo offering a pre-order bonus for Mario Tennis Aces, which is set to launch June 22.

If you buy the game on the Nintendo Switch Eshop between now and June 21, you'll get 300 bonus Gold Points, for a total of 600 Gold Points for the purchase. That's worth $6 in Eshop credit you can use on any future purchases.