One thing that every digital camera I have owned has had, but that I have never once wanted to use was the Sepia tone setting.
Which is odd, because I have an “old-timey Western” photo pinned on the wall of my kids dressed up as cowboys that was taken at a fair when they were little. I see this Sepia photo everyday. But I never ever have thought of using Sepia in my own photos.
If I could have traded the Sepia setting for a $10 discount off the price of my cameras, I would have done it every time.