Bring what you want - Delta has no restrictions. EC gets you a little more leg room, free drinks, and an "enhanced" snack basket that is passed two or three times instead of once, and you can take more than 1 snack. "Enhanced" means bananas, sun chips, different cookies, potato chips are added instead of the basic Bischoff cookies, peanuts & pretzels. Plus you get on earlier so you always have overhead space. We book EC for the leg room - nothing else.