Q: How many Forts do you build? How many Temples?

[ExitJudas]

Of course any answer to these questions will differ based on strategy and nation, but I am still wondering to what extent building many forts is even more important than it seems at first sight. It gives you access to buy more commanders (researchers, assassins) per round, which in itself is of course very important, but doesnt it also give you more income? In general how quickly should you expand with forts? how many forts do you usually build if you have, say 10-15 provinces? Do you put them up side by side?

And temples. They seem mighty expensive to me, and very vulnerable, so how many do you build? and do you dare build them on the frontline or only in core provinces?

Let me get some rants here, I'm looking for general trends more than a complete analysis.

Thanks in advance.

Teh MP noob