[LordArioch]

What's so great about administration anyway? 20 administration difference is, IIRC, a 10% difference and income and supposing 50-100 resources worth of surrounding provinces, there's a 10 resource difference, so taking the castle over the mausoleum gets you an astounding 10% more gold at certain provinces (except for your capitol most forts have low income)...and +10-20 resources per fort. The resources is nice but so is a 150 gold discount on fort cost.

The wizard tower on the other hand, costs over 2 scales more than the mausoleum for 5% more gold at fort provinces and +5-10 resources...I'd rather take an order scale and a production scale.
I can see the benefit of the 40 point castle for early troop production, but unless I missed something, I don't see what the expensive forts offer late-game.