As far as it goes in game however, we’ve found that people never buy it, preferring other cards instead. So we’ve only seen it in action when someone is dealt it at the start of the game. And even then it was only used once when there was no ore out on the table.
THIS. i think this was a great promo card idea, as its a nice bonus but VERY far from essential. If it was very powerful/fun/useful, I suspect alot more folks would be grumpy that it is no longer available by any means.