Just moved to Vegas from a place where they were kosher butchers everywhere. I found this place at the recommendation of a friend and it lived up to everything I was hoping for and more. Their hechsher is beyond reproach, their quality is top-notch, their on-site selection is excellent, and if they don’t have something, they can get it for you within a few days from Los Angeles (I asked him to get me some chicken fat to make shmaltz, he got me shmaltz already made, saved me hours of annoying work on the stove). I would recommend Kosher Market to anyone.
P.S. the only place in town that has those marinated Israeli pickles that make the BEST tuna salads