I was on my business trip to Vegas and my coworker who have been here recommended to try. I was surprised to find a pretty good yakiniku place in Vegas! It wasn't the best yakiniku, but it's decent and cheap.
It's in Chinatown, so it's not really convenient from the strip, but it's so much cheaper and better than these fancy restaurants on the strip. I think it's worth a trip to here to have good yakiniku if you have a car.