When you eat a food that's currently in season you don't pay the excess cost that accounts for shipping that item to you from a far-away location or keeping it shelf stable to sell when it's out of season. Eating seasonally is a great way to get great produce at a cheaper price. Shop at your local farmers markets or farm stores and keep an eye on what they have in season to scout out the best deals. You'll also find deals in your grocery store mailer based on what's in season.