...between Cat. 5 and Cat. 4 on the Magic/Wonder? I can see that it is 36 sq. ft. larger, but that space just seems to be the area where the 5th person would sleep (pull down bed next to the balcony door). Am I really going to notice a difference? Or should I spend my money elsewhere? There are only four of us and the boys will be 7 so it's not like they take up a bunch of room.