My friends and I had a minor dispute about why Xur is even in the game.  I thought it  might be interesting to see what the community has to say.
						
					
					
				- 
   
	Hard light and patience and time are the ONLY exotics o got from him, everything else he sold the week after I got the exotic. Armor on the other hand doesn't drop as often as weapons. Only legendaries and nightfalls so Xur is a good addition to get exotics