I've been to Vegas only half a dozen times, or thereabouts.
But let's see. Two of those were stopovers on car trips driving to LA in the early 70s, then once when driving to Chicago in the mid-80s. Another time (or two?) was friends and I going there from LA just to do it, and we saw Don Rickles at the Riviera one of those times. One time was a pilot friend and me hopping over there in a Cessna, just a day trip, and I think we just ate lunch in a casino and flew right back. The last two times were when our company was participating in trade shows, so we got to live high on the hog (or is it off?) those times, and we saw the Siegfried & Roy show - which didn't interest me, but it was entertaining enough at the time.
Okay, that adds up to seven times and I'm still not certain that's accurate. Anyhoo, it was always fun and always mindboggling, but I'd never deliberately plan a trip there nowadays. And invariably, the things that attracted me were the reminders of "old Vegas" as opposed to the big corporate thing it is now.