Actually, in some cases, getting a wild item is better than buying it from Xur. For example, the Obsidian Mind that my Warlock has been using for a few weeks now is better than the one you can buy from Xur this weekend. It has 20 more Intellect than Xur's and less Strength, and we all know that Intellect is a more useful stat than Strength. Of course, there are cases where you can get a wild one that has worse stats than Xur's, but in my case it's better. Also, I have 4 Icebreakers and just bought my fifth one because the one weekend that I didn't play was the only weekend that Xur had the Icebreaker upgrade. Now I at least have one Icebreaker 2.0 that I can share between my toons.