Starshine
take up exchanging. Seriously it's easily 1 mil a day.
You need gold to make gold—i.e. this only applies to those who have it. Can't tell this to a person who has nothing.
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But on topic, I've been thinking about what I want to get out of HoC as well. With the amount of essence I've spent on packs, I could've has so much gold right now. But I don't think HoC is going away any time soon, so my goal is to build a deck I am comfortable with using (that won't need too much modding in the future), and then focus on converting ess to gold.
But to do this, I need better cards. So until then, it's used solely on packs.