this expansion? i got the 2 preorder bundles . most expansion i only take the preorder bundles. and some bundles offered after. Personally i invested a lot on the Beta era. i have like half of the classic legendaries in gold and like 1/3 of classic cards in gold from opening packs. Normally i am sitting in 50k of dust, varying around 5k, and when over 60 i splurdge in a golden wild deck . last one is murlocs
Nothing. Spent 2,500 gold on packs and had about 16k dust so that plus Arena packs has pretty much bought all the cards I need to play a reasonable number of decks. Only spent about 5k of the dust as I got quite lucky with my legendaries.
this and last expansion i've spent the least, not because I play less or don't want the cards, just due to spending lots more on the other expansions ($200 or so canadian). So my resources have built up and I no longer need to spend crazy amounts of money. Hearthstone is easily the most affordable TCG.