If you want to get around the strip quickly this is the best route.  Taxis are expensive and take too long.  Walking (as I did this trip, SUX!)  I definitely enjoy the monorail to zip around town.  It is affordable for the all-day and 3-day passes.  However, I do suggest staying at a hotel on the strip or you will end up trying to hunt down parking just to get to the monorail, which happened to us this trip.