Grey-
I knew I would get a response like yours. I have an old mumei blade that I picked up at a trading post in Orogrande New Mexico (of all places) around 1978. I submitted it to a shinsa in Albuquerque in 1980 and it was rejected for "being too tired". I was told it was worthless. Lucky for me, John Yumoto consented to discussing the blade with me after the event. He told me it was suriage, and made by a "country smith" around 1590. So here I am with an artifact. I worked very carefully on the blade for about a year and even restored the yokote. I can now see the hamon and the hada. I am sure it is still worthless from a collector's point of view. This blade was never intended to be an art sword, but something to be used. It is worth something to me because of it's age and historical value.
But this issue is somewhere between politics and religion.
Rich