Diet Coke’s ‘Sparkle’ Ad Makes a Comeback

Perhaps you’ve seen this ad make a comeback in the rotation of some of your favorite shows lately:

It’s a catchy commercial, but what’s special is that it originally took the screen in Spring 2005. Now, three years later, it’s made a comeback.

So, what’s that tell us? Is Diet Coke lacking the creative juices to improve with something new, or are they wise enough to go back to something that, apparrently, worked? What do you think?