If you're looking for a non-Starbucks option on the Strip, Sambalatte is an excellent option. The selection of coffees and teas is huge, and it includes some fancier drinks and classics. The prices are still like what you'd expect on the Strip, but you'll be getting something different.
My flat white was pretty spot on - not best ever but definitely better than Starbucks. The nutella latte was very tasty and a sweet, caffeinated treat.
Plenty of outlets and a variety of seating options, including a large communal table and some comfy arm chairs.
Right at the front of Monte Carlo (off Strip side) so an easy stop. Check it out!