Keith,
while not disagreeing with you, I would like to add that some interesting thoughts about mumei blades have been recently expressed in Nakahara's book (which is widely seen as very controversial).
The only review of this book I could find online is unfortunatelly mine, so I hope you will not regard me as uncouth if I post it here?
http://gomabashi.blogspot.com/2011/01/r ... s-and.html
@ KM
Henk-Jan,
Your preferences will possibly change the more exposure to good swords you get. This is an experience I have made, when, to my own astonishment I have rediscovered a forgotten tanto as my best piece (yes, you've guessed correctly, it had a suguha :-)
If you allow a word of advice - try to see the blade as something separate from the koshirae. I know this is difficult, given the European tradition, but most koshirae you can buy with a blade are a haphazard affair, regardless of how well the tsuka is wrapped Making a good new koshirae is an art involving several artisans and it does not come cheap. I recommend you do not get distracted by the koshirae when buying a blade. The mountings will be ususally nearly worthless, but you will be asked to pay a premium, because only a mounted sword is a "real samurai sword" in the eyes of so many inexperienced enthusiasts...
Sorry about the OT