I was raised on Pepsi...remember the "Ads we won't see again?" I think my mother bought into the pop ad. I can tolerate Diet Coke (hate Diet Pepsi) and Diet Dr. Pepper, but they always make me so very thirsty. As far as addictive, I firmly believe yes. I grab my pop first thing in the morning and have it nearby until right before bed. It is by far my #1 comfort "food". Pepsi's my daily, but I turn to Coke for queasy tummy. In fact, McDonald's Coke is best for that.
As for the vinegar-Darn! I LOVE vinegar too! Every now and then I'll drink a bit. Dill pickle juice too. That's probably not so good for me either!