I am not convinced about the usefulness of Henge. Or rather, I'm definitely convinced that it would be good for the sake of expanding borders. I'm just not convinced that the consolation gold wouldn't be even more beneficial. REXing as heavily as we probably want to do
will crash our economy, and having a gold buffer will let us expand more aggressively than if we didn't have that gold.
That said, I could probably be convinced. There are several locations out there that could benefit greatly from expanded borders. But I'd like to consider other alternatives as well.
We currently have a Confusian waiting in Oraclia. He is an asset that should be used with great care, and I think the best use we could have of him is to make him expand some borders. With the Holy city in Oraclia, both Aksum and Deli are close enough that I would be really surprised if we don't see auto-spread within 10 turns. This happened in all my test plays, sometimes even both cities on the first IBT. We don't don't really need the happiness boost anywhere, what with Representation soon giving us +3

in all large cities. And we don't have access to any religious civics to run that would affect our use of the Confusian. So, border expansion. Argentina doesn't really need a border expansion any time soon, nor does Estonia. This means we have the option to put this guy to use in one of our upcoming cities.
Still, that's one city down, but we're looking at probably 4 cities that will need to expand borders fast. The downside of having the Holy city in Oraclia is obviously that auto-spread chances will be rather low in the west. I should look up the chances more exactly. Missionaries are 60

each, building three of them (180

) is thus way more costly than Henge (90 base

, 52 remaining). Spreading the religion will obviously give us other benefits than just border expansion down the road, but "down the road" is down the road and early hammers are way more important than late hammers.
So.... I think I just convinced myself that completing Henge is a good idea after all!
