As part of the eBay Daily Deals, RushHourWholesaler [69,000+ ratings] is offering Mario Tennis Aces for the Nintendo Switch for $46.99 with free shipping.
This deal matches both the GCU pricing and the Amazon preorder Prime pricing, and is a great alternative if you do not have those services.
https://www.ebay.com/itm/Mario-Te…3107968559