I know, Stephen, I have seen them many times, and at that time, I bought nice old blades in GUNTO KOSHIRAE for ridiculously small sums. I think, modern militaria will always have their ups and downs depending on temporary hypes, but generally their prices are more dictated by scarcity. A genuine NIHONTO always had a very high value, even when it was newly made. Most if not all of them are unique and cannot be replaced by a similar one, which is quite different in comparison with militaria..