The upcoming Switch 2 will allow developers to sell game-key cards which require an Internet connection and enough space to download the game.Game-key cards won't be automatically connected to a single console or to a user's Nintendo account.The game-key cards offer upsides in terms of sharing and reselling games with friends.However, the future incompatibility of game-key cards if Nintendo shuts down servers for the Switch 2 is a potential downside.