I am (mostly sadly) pretty well aquainted with Vegas. Unfortunately, the monorail/tram systems are pretty disjoint. And even if it just involves walking through a casino can still be quite a hike.

And I, by no means mind walking, though there was the time I went to Vegas on a business trip and was on crutches with no weight on foot allowed. Though the high point was that a porter showed me how to use the crutches more effectively; he was an (aspiring?) ballet dancer who had apparently spent more than his share of time on crutches :-)