Why the heck are smoothies so expensive?

I swear, you can buy the most expensive meal deal at Taco Bell or McDonalds and still be cheaper than a medium-sized smoothie. Just because we want something modestly healthy means we have to pay more than any human should be asked to pay for sustenance.

Today I was at the Mall and I could have gotten a 22 oz. pop at the Holiday Station(less) Store for probably under a buck. But I went upstairs to the Tropicana Smoothie place and paid $6.17 for a 22 oz. smoothie. Maybe I'll just go back to pop.

The only smoothie that's worth its weight in gold is the White Rock smoothie. In all my travels, I've not found a smoothie that tastes as good.