If you are looking for a proper dive bar located close to the strip, one that it legitimately populated primarily by locals, then look no further. Stage Door is nice and dark and old skool, plenty of good cigarette smoke in the air, and the drinks are unreal strong and VERY cheap. They have video poker on the bar top, too.
So kick back, play a little video poker, smoke a cig or two, and get proper FADED on the cheap.