I think that NARS belongs to the Clinique school of deluxe samples: give away your bestselling shade and hope that your customers feel the need to buy all the other colors in the range. I swear, I've been getting Clinique GWPs for close to 20 years, and the lip colors are and have always been Black Honey, A Different Grape, Think Bronze, Air Kiss, etc. I love Black Honey and will never need to purchase a full-priced tube, but I wish the other colors weren't repeats.
I was a little relieved to see that I own all but one of the Benefit advent calendar samples. I loved it last year, but my wallet is happy this year! I am definitely getting the mini UD lipstick set, though.