I've been once and the best part for me was the Cirque shows. We were there for reasons other than our choice of destination, and not being a gambler...Vegas was not something I greatly enjoyed enough to want to badly return.
have not been. it's on my list, but not very high. the older i get, the lower it gets...as the appeal of going to the clubs fades. as for casino's, there are so many around me nowadays that there is no point to heading to vegas for gaming. but i would like to go someday...just for the experience.