Is Denny's Free Grand Slam Breakfast Really Worth Your Time?

dennysgrandslam4.jpg
Graphic by Audrey Fukuman. Click to enlarge.

As anyone who watched the Super Bowl knows, Denny's is offering free Grand Slam breakfasts today from 6 a.m. to 2 p.m. We thought it made sense to revisit John Stuart Mill's concept of opportunity cost -- use this handy chart to figure out whether Denny's "free" is actually worth your while.

Read more in "Denny's Complimentary Grand Slam Only 'Free' To Those Who Can't Do Math."

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