And Wildlings, and assuming Darklings are the same, reproduce in ungodly masses and are pretty useless. Off topic, but I wish instead of getting tons of worthless guys from those improvements, that we would get a single, useful unit.
Agreed. Even a single Wilding Shaman would be far more useful to me as an army unit than the vast hordes of unarmored 4*group_size attack meatshields that spawn from Wilding Villages. As worthless garrison units that somehow manage to convince the AI not to attack, or as meatshields for my better forces, they're alright, but I'd still rather have even just one Wilding Shaman than all of the Wilding Warriors that currently spawn.
As for the pay of the mercenary units (mercenaries, hunters, Knights of Asok), those are ridiculously high and I would never bother building improvements to get them. I'd possibly go for the Knights if the number of them that spawned was tripled and their total cost remained the same, but right now? No thanks. Also, since I usually see at most one Order of Asok per game, why should I bother researching Alliances? Getting just three of these units from Alliances isn't worth it, and my past experiences with diplomatic AI (in any game, not necessarily this one) leaves me rather doubtful of the value of forming alliances with other factions, unless I'm either trying to keep one or two AIs off my back or for some reason going for a diplomatic victory.
The pay of the Mercenaries and Hunters is particularly egregious, though, since they are essentially renamed bandits, and if you play a Bandit Lord sovereign, you can recruit wage-less bandits for 25 gildar.