Combine it with things already on sale!
JB Hi-Fi has announced an awesome deal for the Boxing Day sales with Nintendo eShop cards now 15% off. It’s not the first time, nor is it the biggest discount but with sales on the store right now it’s a great time to combine the two offers. The eShop cards are on sale from Boxing Day until January 1st.
All denominations of cards are up for grabs at the reduced rate;
Not only is it a good time to get some games already on sale, but the discounts are great for retail games as well. Here are some example price points and some games on sale already.
Retail
Festive Offers 2017 (with 15% off already discounted price) Not all of these games are on sale until January 1st.
Proof: OzBargain has a scan.
From Mario to Zelda, to Splatoon to Donkey Kong. Everything on Nintendo Music.