Okay I must have lived here too long and have taken advantage of Casa Bonita, because the food there is absolutely horrible nasty, microwave dinners!! But the atmosphere is so much fun. It has not closed yet, and I haven't heard any rumors about it closing until now. I was just there a few months ago and it was up and running. I guess I have a problem with Casa Bonita because my best friend worked there in High School and she told me MANY MANY nasty stories!!!
Obviously I am partial to CO because I have lived here my whole life, but I love it. I would say my 3 top areas to live outside the city (but not too far) is Highlands Ranch, Parker, and Castle Rock (all close to Denver and the DTC). The areas are newly developed so houses are a lot cheaper and are close to the foothills. I live in Littleton and will probably stay here because I work at the Fed Center in Lakewood.
On the weekends in the summertime I go down to CO Springs a lot. They have Cheyenne Mountain Zoo, 7 Falls, North Pole, Olympic training center, mining museums, lots and lots more. Some attractions in Denver is Water World, Coors Field, Pepsi Center, Invesco Field, Childrens Museum, Denver Zoo, Art Museums, Natural History Museums, Molly Brown House, the Auquarium, 6 Flags Elitche Gardens. There is tons to do here.