They aren't always based in logic and I am not convinced that we have 100% control over what we like and don't like.
I know that tastes can be "acquired" - mind over matter and all that, but does that mean we really LIKE something?
The older I get, the more decisive I have become about giving things a chance. I will try (almost) anything once. Beyond that, I make no promises. I am not sure if that is a positive or negative trait... #sorrynotsorry