Daddy said:

The amount of coins that a present usually costs and the value of the content inside them are usually not that different. 
 

what I’ve done for the past 3 years or so is just grabbed a couple of the rarer ones if possible and save my coins so I could quickly snipe anything I wanted on Christmas Day if I had a few minutes to use the mobile app. Some people will spend a fortune collecting presents just for the sake of opening them.. but to me they are not that exciting and there’s more profit to be made from an auctioneer standpoint.

Not playing madden on Christmas Day is definitely on my to-do list this year 🎅🏻

This has been my approach as well. So many of each present gets opened that the prices are usually pretty low anyway.