I bought 1 from Xur (the warlock helm) but only because my previous helm was 434 and everything else, weapon&armor, I had was >490 so it really helped push my overall light level up since the other vendors did the same the High Power engrams do, gives me, boots, boots, and more boots, followed by nothing but boots (the probability of that happening in one streak I had on my Titan was <0.001%, and they make no acknowledgement that there's an issue with their RNGebus). But as for drops. Been playing a ton since it was released, and still no exotic drops. But honestly I don't want them to all drop in the first week. Don't get me wrong there's a couple I REALLY want but I remember the grind, followed by elation when I finally got my GJally. In fact even though I ran Vault weekly on all 3 char's I never got the Mythoclast till a month after the yr3 version came out. Thus I'm still giddy when I jump back into D1 and get a chance to play with it.