Buying Syrup Shots for Starbucks Rewards?

Hmmm, is this a relatively cheap way of earning Starbucks Rewards stars? With the free-brewed-coffee-in-January tumbler, you get plain coffee for free (well, that’s not completely true since the newly promoted Vanilla Blonde is covered as a freebie). How about paying for flavored syrup shots added to your free coffee? What’s the cost of a syrup shot? A quarter, 50 cents? Not a bad price to pay to earn a rewards star.

I wonder how a Vanilla Blonde with caramel would taste…