It's needed for the convention crowd staying on site.
Recent additions have matched up with popular, profitable restaurant ideas or filling in holes in the line up.
Antojitos -> Mexican
Hot Dog & Breadbox -> counter service
Vivo -> modern Italian/fresh ingredients
Red Oven -> Quick Pizza
Cowfish -> Quirky gourmet burger place
NBC Grill Brew -> YardHouse
Toothsome -> Cheesecake Factory
So Emeril's and Tchoup Chop would fill in for higher end Florida cuisine with fresh seafoods and steaks (similar to Boathouse or Homecomin' and DS) and Chinese/South Pacific focus in Royal Pacific (similar to PF Changs, tiki bars, etc).