I think the price may be cheap because the courses were already close to being done just like Mario Golf's dlc for 3DS. Personally, I would have paid 72$ for 10 cups anyway! 2 cups are already 1/4th of the usual 8 cups and 1/4th of 60 is 15$ if my math is correct!
Good thing MK8 only cost 48$ for me thanks to amazon 
Edit: Shoot its 12$ for four cups, not two!







