PA Knives,
Since you asked for opinions, I'll take the bait
I don't think your topic is all that controversial. The gist of which is that if someone doesn't want to pay full price or can't find one, buying a less than perfect knife is another option. This is why there are thousands of antique shops throughout the US selling what was once thrift store furniture or garbage as antiques.
From your article, you don't collect knives you collect tang stamps, thus broken knives have appeal. I would say that for most knife collectors broken knives are trash or a source of parts to build a complete knife. I would disagree when you say most collectors would shy away from a broken handle, but buy a knife with a broken blade. In these days of modern glue, a cracked handle and some broken ones can be easily stabalized and even carried. I have a Sears Dr. knife with pearl handles that I fixed and stabilized with expoxy. It stands up to pocket carry.
You need to be able to resell your less than perfect knives when a good specimen comes around.
At the knife shows I go to, I see knives with handle problems in cases to be sold, but those with broken blades are in bins or open for all to handle. I see people buying knives that are in used condition, but they buy them at discounts and to fill holes in their collections, not as the basis of their collection. I don't see many people buying well worn knives, unless they are old and rare, and then they don't go cheap. Broken knives have to have some type of real appeal to move, such as rare 18 or 19 century blades.
Like your last article, this one is basically an editorial, i.e. your opinion. In the future give us some facts to spice it up. For example, go to some shows and look at the availability of some models in good, used, and broken condition. Are there really all that many broken knives out there. There may not be many Beaver Creek knives out there, but that could be true of both broken and whole knives. Many people thow broken knives away, use them for parts, rehandle them for another generation, etc. Go to Oupa's site on knifeforums to see what some people do with broken knives. You could also compare prices between good, used and broken condition. On the aggregate how much money do you save buying broken as opposed to used? You could talk to collectors and sellers and see what type of market is there in second tier and broken knives. What about "cleaned-up" knives. Are they cheaper on the floor than used knives that haven't been cleaned-up?
Don't get me wrong, I liked reading your article. Keep em comin.