Has this ever happened to you? You try to fine-tune your taste buds by revisiting that maiden dish you had a long time ago, the very dish that got you to explore more of the kind, only to realize how unsophisticated you were when you first had that dish, and that your preference has actually evolved.
You've acquired an entirely new spectrum of subtle palates (and palettes, too!). You've built up tolerance for alcohol and spices. At the same time you resist rejecting the taste of a food with tons of childhood memory.
You are like a person who could distinguish a dozen different sounds of "k" but was unable to tell an "r" from an "l" because he didn't grow up with it. But he goes on to learn, not only how to say "r" properly, but he can now do "gr" and "rrl" along with myriad other notes that ring his chow bells.
I thought about this as I read chowhound postings about pizza. Do you have a good example of your preference change? Something you once thought was the best, but now changed your mind?