I think that is true for everyone
You are not alone!
I think my top out is around 1800 calories and like you say, I don't miss the calories like I used to. I was still hungry when I'd eat a low fat diet with 2500 calories.
My poor pancreas.
I use fitday.com to track all my essentials and I'm usually around 1600-1800 a day (some days I over indulge and have 2000). In time though, I'm sure I will lose my appetite like I did last October and eat less and less. I'm still trying to get myself out of the nibbling habit due to boredom.