Alright, folks.
There's no way Watchtower is the card whose value is boosted most by Dark Ages. It was already in the top 10 for its price range, and I still don't see it surpassing Amb/Masq/FV/Menagerie, it'll get better but there's a ceiling here, which it was already not too far from.
Fairgrounds, on the other hand, has just received an insane cuckoo mega-boost. Ten different Knights all with different names! In *addition* to all the other crazy variety boosts we've seen already from Dark Ages. Wow.