i'm most likely not the only person in need of heavy synthesis. But guess which agent of the nine refuses to sell them? Yeah the ultimate troll Xûr. I'm not even mad about his offered gear because i could not care less. All i wanted was to spend my damn coins!
I used all of mine on HM crota. Smart move bungie. I won't farm exclusion zone for hours just to get the needed glimmer or wax idols for that completely overpriced eris offer.
Maybe next week. I hope my teammates still have alot ;)
Bungie knows that you need them for the raid, therefore Xur will not have them, they want you to spend 1000 glimmer a piece from the gunsmith so he actually has a use. It's all part of the grind, the more you grind and play the better for them.