I bought it. My inner Completionist is crying at me right now. I have all of the Standard Cards that I can have, so that's a tick box right there. I believe I'm missing (without looking) 9 Legendary Cards and around 6 or 7 Epic Cards from a Complete Wild and Standard Collection.
So what do I do? Do I burn my Dust just to have a Complete Wild and Standard Collection? Or do I just bide my time and save my Dust for the next Expansion?