GameStop will give you full credit if you trade in Super Mario Maker 2 within 48 hours of launch
GameStop is running an interesting promotion for Super Mario Maker 2. If you trade in the game within 48 hours of the game’s release, you’ll receive full credit from the store. That information is posted on GameStop’s website here.
Obviously that 48-hour window doesn’t really leave players with a whole lot of time with the game. But if you end up buying it on release and have concerns that you won’t enjoy it, you’ll have the option of getting full credit value from GameStop.