You are very wise
Probably helps with your sanity too! As if the holidays aren't hectic enough without all the shopping! 
The truth is, when our kids were kids, I was anal and ridiculous about Christmas. Then the day came when I realized I had spent too many years roasting your nuts and jingling your bells. It was time to relax and enjoy the season.
My wife still likes to "do" Christmas. I let her. She leaves me alone.
Since we have four kids and eight grandkids and four inlaws and eight out-inlaws, etc, we draw names. This year I drew my youngest daughter's name. My wife already bought my present to give. I like that.