I've been mulling over how to get this to work out. It doesn't work on pre-orders and CAG16 doesn't stack. Double boo!
One thought is to buy something with added value, like Tetris 99 (new, Switch, $30), which comes with a year of Nintendo Online ($20 MSRP), gut the game, then sell it off, used, and do whatever with the 50% off game, which might not have the case. The half priced game would likely be an expensive $55 title.
Sadly it only seems to work for 1 50% off game per 1 full priced new game.
Hmm, the margins are still very slim. $30 Games I would want to buy new, due to the included DLC codes (ex: MM:Legacy) are sold out. Oh well.
Not a bad idea, I passed on considering Tetris since I figured it was one of those code-only games, but it looks like it actually comes with a cartridge. I don't subscribe to nintendo online myself, so wouldn't really find a good outlet to sell the code here.
Clubhouse Games @ $40 isn't a terrible option to split the order delivery methods. (pickup + free ship) Sadly, both new and pre-owned games are locked out of CAG16 as well as any certs once both are added to cart....