Nintendo has announced that starting in March you will able to use gold points accumulated through their My Nintendo reward system.
Starting in early March, you’ll be able to spend any Gold Points you’ve accumulated in My Nintendo when purchasing Nintendo Switch software from Nintendo eShop on your device, or even via this website! You can pay for the remaining balance with Nintendo eShop funds, or any other payment method available in Nintendo eShop.
This new system is guaranteed to have Switch owners very happy!
(Source – Nintendo)