I agree with you Thomas, I agree with everyone, I am an easy going man! :D You are right in a way. I said that because my present knowledge does not allow me to buy old signed blade as I do not want to spend high amounts in blades that I can not identify. I guess after "45 years in collecting" I will change my point of view.
Yes David, some showato are very well done and nothing to see with stock bar blades.With them you can be pretty sure they are not gimei as the seki smiths are quite modern ones.There prices are reasonable.
As a conclusion, I am focusing on blades that have no fatal cracks(not twisted, no kizu, not retempered...), not tired(fair munemachi) and on modern signed blades to avoid gimei problems.
But I guess we have been far from the very first question asked by the first post, haven't we?
Regards