I'd like to keep our options open, and the Lighthouse + this crossing would really help in that regard. It's our fastest route to the mainland and fastest route to Lego.
We don't know when the big break is going to show itself. If we've isolated ourselves up to a given time and the break comes before that, someone on the mainland is likely to take the game in hand. With our (likely) 4 Iron sources on this continent, a team or teams on the mainland aren't going to have Knights/Pikes unless we let them. This could make the early Middle ages very important. Another possibility is that Lego won't have Iron, in which case they could become a very juicy target.
Of course we can always trade away the Iron and even things out between the teams, but that's also negating our advantage as well.
We don't know when the big break is going to show itself. If we've isolated ourselves up to a given time and the break comes before that, someone on the mainland is likely to take the game in hand. With our (likely) 4 Iron sources on this continent, a team or teams on the mainland aren't going to have Knights/Pikes unless we let them. This could make the early Middle ages very important. Another possibility is that Lego won't have Iron, in which case they could become a very juicy target.
Of course we can always trade away the Iron and even things out between the teams, but that's also negating our advantage as well.
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