Graviton
Well-Known Member
Acutally it isn't - when you are playing for a long time now and where already in one of the higher Ages when those buildings where intruduced.
Then you have all kinds of goods buildings from those eras that you can build.
I am unconvinced that there's a need for this other than to make up for poor planning, and to save the time it would take to create or trade for the required goods. In which case, if Inno implements this it should cost lots of diamonds.