You can do whatever you like. They are made to be used. If you want to collect them so be it. He's not saying don't collect them. Ultimately they are users.
What's the point. If I don't use it, why get it. I mean that's just one perspective anyway. I've got $50- $500 knafs I use. Its mine. I'm going to keep them and not sell them. I'm going to use the heck out of them. Just trying money up in something to keep in a safe to maybe sell later... Hmmm. Not only that but these things can get a spa treatment if need be if value is a concern.
To each his own.
I have the $ to collect things that I value and appreciate for their design and appearance. I also have many things, including knives, that i use. For example, I do use all of guns, all of which are valued at far more than any knife that I own. I just CHOOSE not to use expensive knives to do things that less expensive knives can do just as well.
If you want to beat the hell out of your $425 Hinderer or any number of $100-400 Spydercos, Microtechs, Protechs or ZT's (all of which I have the privilege to own) be my guest but it's NOT anything that I would care to do myself.
I've got many other knives that will do the jobs that they can do just as well. They may not last as long w/o sharpening than the premium blades that I own but they are easily resharpened and can do whatever job I need them to do w/o worrying about wasting $100-400 in the process.
Different strokes for different folks.
BTW, as a retired LEO, trained in hand to hand combat and defensive tactics, my main use for knives and the main reason I carry one is strictly for self-defense (or offense, as the case may be). I have a variety knives (many of them Spydercos) designed specifically for this purpose but ANY knife can be used in this way.
However, I have NEVER used and hope to NEVER use a knife to maim or kill someone. So, in this sense, it is actually BEST that I NEVER USE any of my knifes. The same applies to all of the guns that I own and sometimes carry.
I can cut or kill you just as well w/the Cara Cara 2 that I'm carrying now, than I could w/the Amalgam that I just bought. But I will be much happier when the Cara Cara is seized for evidence, than if it was the Amalgam.
I hope you get my point but, if not, so be it.