It has long been thought that Dr Pepper was the mixup of a dozen or so leftover syrups, the majority of which was black cherry. Tastes just like that. Its cloying ambiguity appeals primarily to the sweet tooth of a ten-year-old.
For a while, its competitor was the similar-tasting Mr Pibb.
I didn't realize I was still 10. DP has been my preferred as long as I can recall, though it went to diet DP and now DP10 is about as good as it gets.
Wife is the same way.
RE up north... we pick up a few "cases" in Eagle River AK every fall on the way to our moose hunt...