I bought the expansions and some currency probably twice to get some convenience stuff. Haven't bought anything else and only really play the story. I gave GW2 a big try when path of fire came, but end of the day, aside from the story, i really don't enjoy it very much at end-game. I do love the world cause i'm a GW1 fan, but everything GW2 is a disappointment to me.
I really do wish they made a GW3 more like the original or heck, i'd be happy with a continuation of the original.