As a relatively new player I am short on gold and dust. I am considering preordering due to the cost per pack. I do not mind occasionally putting some money into a game I spend a lot of time playing.
My main concern with DoD is the future. My experience playing other similar card games is that down the road only a few cards from each set remain playable. The DoD set seems to be highly dependent on playing a significant number of DoD cards for a lot of the key ones to be effective. This tie to set dependency may result in DoD cards being a fad.
Go for it man, you won’t regret it. One pre-order can set you up for the next expansions if you decide to save gold in between