The physical game cards are going to be expensive to manufacture because they need to be much faster. Look at the cost of microSD Express cards. I thought they might go entirely virtual with required installation.

Needless to say, 80 USD is too high for me, personally. 70 is pushing it, honestly. Most of the time you can use sites like isthereanydeal and even get new releases under 60, but that's a no-go with Nintendo.