James Surowiecki on “Downsizing Supersize:”
Currently, on a per-ounce basis, large drinks are much cheaper than smaller ones—which encourages people to supersize. The soda ban should shift this. Two sixteen-ounce servings are bound to be more expensive than one thirty-two-ounce serving, which creates another disincentive to drink more.
I am guilty as charged on this one. I used to get Starbuck’s venti ice coffee. Now I am getting the trenta cup. It’s ridiculous. I rarely get the frappacino, but I go all out whenever I do because it is so expensive for a tall size comparing to a venti size.