How much did it cost Yahoo! to redesign their new logo in-house?

In a highly publicized move, Yahoo! redesigned their logo with design efforts led by CEO Marissa Mayer. She says in an article in Ad Age:

"On a personal level, I love brands, logos, color, design, and, most of all, Adobe Illustrator. I think it's one of the most incredible software packages ever made. I'm not a pro, but I know enough to be dangerous :) So, one weekend this summer, I rolled up my sleeves and dove into the trenches with our logo design team"

Obviously, Yahoo didn't design their new logo in-house because of economic reasons.

YahooLogoAnneMcCollSM

Oops. I forgot to add in the price of pizza.

See a big version here.