Well, that's a very good question...
I already own a sizeable sengoku army. I have always been interested in the Boshin war, so much that I contacted the Perry brothers about the subject and even considered the idea of creating my own branch when Roku set out his. Problem is that I have been unemployed for 2 years now and it seems that's going to be a permanent feature in my life, so I can't afford to buy any more miniatures (or clothes, or food at this rate). I only own the three initial Bac Ninh miniatures packs, and I'm working on my own 1:3000 models of the ships involved in the war, but I fear that's anything I'll ever have unless a miracle happens - and we all know how frequent miracles are.