One MRE is not bad, but even though they try to put a good bit of variety in the menus, a MRE is still a MRE. There is a certain sameness to all of them. After several days anything gets old.
Several years ago I had to travel around the state for over a week doing dog and pony shows in different locations. At every stop the meal was excellent grilled steak and baked potato (Yeah, life is rough, but somebody had to do it.) After a week on the road eating nothing but steak and potatoes, I returned home and DW greeted me with, "let's go out to dinner." My response was, "can't we just stay home and eat a hotdog?"
I don't mind MRE's, but I really feel for our guys who have to eat them every day for a extended period.