Another plus 4 the big .dm file is that you don't run so fast into the annoying game mod limit.
For me it got so bad that I'm always moving mods in and out of circulation
Actually, I think they're meant that way. Ogre's and Skaven's national scout cost 1 gold as well. From what I remember, this was to make recruiting them suck less. There is usually more than enough indy scout provinces to recruit from and Warhammer nations all have good capital only commanders.