If you don't mind living in a skate park (among many other issues), Summerlyn might be for you. Despite the No Skateboarding signs, there's plenty of it going on in the parking lot. There's no enforcement, and I can say that if my vehicle is damaged, Summerlyn will get the bill.
One other interesting thing - some of the "parking shelter" roofs are accessible from nearby hills. One afternoon I came home to find a half dozen kids playing on top of one of the shelters. I called and left a message for management, letting them know and hoping they would do something to block access. Months later, no change. One day, some kid is going to get killed falling off of that or by being run over by one of the speed demons in the parking lots. So if you've got kids, Summerlyn is NOT the place for your family.