I was recently talking someone from the midwestern part of the country and they had never heard of it before.....I've been enjoying it since I was born. I put it on:
Salads (when intoxicated, it looks like some sort of salad dressing lol)
About 2 years ago Mcdonalds stopped offering it around here. Just a few months ago Wendys stopped offering it as well
Jack in the box, Carls JR, Dairy Queen, Burger King, Arctic Circle and all the small burger joints still offer it.
I always keep a bottle in the fridge in case of emergency.