I do get a craving for McDonalds fries that I give into probably once or twice per year. Usually I'll get a Big Mac combo, or a couple McMenu sandwiches. The other surprising factor aside from the absurd price is how mediocre the flavour has gotten. While it was never culinary art, it somehow tastes even less like food than I remember just years ago.
It probably hasn't changed a whole lot over the years, it's just that the cravings make it sound so much better until you have it again. I'm the same with KFC, I get massive cravings and remember how good it was last time, then when I get it I end up regretting it and being disappointed, then the cycle happens again
Tho that's my personal experience yours could differ