https://www.gamespot.com/articles/heres-how-bayonettas-nintendo-switch-eshop-discoun/1100-6456808/

Bayonetta 2 arrives on Nintendo Switch very soon, and alongside it, Nintendo and Platinum Games are bringing the original Bayonetta to the console as well. Those who pick up a physical copy of Bayonetta 2 will receive a download code for the first title, but the two games will only be sold individually on the Switch Eshop. While it appears it would cost more to buy the games digitally than at retail, getting both together will still work out to the same price, thanks to an offer from Nintendo.

On the Eshop, each game is available for a different price: Bayonetta 2 costs $50, while the original Bayonetta runs for $30. However, purchasing either one of them will entitle you to an automatic discount on the other, bringing the total cost for both games to $59.98 (before tax)--about the same price as the physical release. If you buy Bayonetta 2 first, you can nab the original for about $10; conversely, buying the first Bayonetta will drop the price of Bayonetta 2 to about $30. You also don't need to purchase both games immediately in order to receive the discount.