As a primarily combat player, I place a higher value on armories than many. I have 5 in one city, 6 in the other. That really helps once you get to the end of Ch8 Orcs and get the AW Shrewdy Shrooms that is based on number of armory levels. Since higher squad sizes are no longer a detriment to tourney participation, the Bulwark has become more viable to me, but I still haven't started upgrading it in either city. I stopped at lvl 7 in one city, lvl 6 in the other as soon as I got Shrooms. I've been using a strategy of adding a few lvl 15 armories between chapters to any extra space, driving my training size (due to the Shrooms) up to 3 to 4 times squad size and developed a really good inventory of troops that way. That was more efficient when there was only one training queue, though, and much less needed with each bldg having its own queue now. I'm also feeding the brown bear rarely now, so it's not so advantageous to have the total queue times at 15+hrs to be able to use the higher denomination time boosters either. I've been going back and taking the optional squad size upgrades (that I originally skipped) for event quests, so I'm pretty sure I'll focus on the Bulwark soon in both cities. That may mean I reduce the number of armories, too.