For me, it comes down to serving size. I love pumpkin fizz/juice, but I feel like the cups and bottles are way too much for me. I only ever wind up drinking half of it. It's like trying to eat a whole pumkin pie: the first bite/slice is delicious but by the end of it, it becomes a chore to finish.
Also, frozen butterbeer has no flavor to me and the way the topping just kinda sits on the top is unappealing to me. I like getting a cold butterbeer and letting it sit so the foam can rise and then indulging. I'm dieing to try the hot butterbeer, but for the time being, I'll stick with the cold.