The collectables are separate from the users. Why risk damaging a rare and expensive piece when a common item will work just as well. For instance mother-of-pearl looks beautiful, but drop one on a concrete floor and 90% of the value just went down the drain. Likewise if you break the back spring on an older knife.
Everything gets carried at least once. I've EDC'd tools that would be considered collectors items, and in some cases have used the hell out of them. Mint condition first-gen Schrade Tough Tool with the original leather sheath? User. Mr. Pinchy? User. MP600 with BO tools and factory red paint? User. Limited edition Queen slipjoint that says "1 of 50" on the blade? Doesn't say that anymore, it wore off. I'm evil at times when it comes to that. See my sig line.......
I only buy what i want to use.
In times like these where the internet has a picture of every thing I can see why some think an item is less collectible. In the past I recall saying "Oh yes I remember seeing on of those, I think". Now with a few clicks on the internet you can most likely find it. The internet has opened the door to may collectors they can find multi tools once thought to have been extinct. On the other side many collectible tools have become common place because of availability on the internet. I collect multi tools that are no longer produced so I do not use them. A couple of my BuckTools took several years to find, but finally they can up on the net and I have them. Most sellers had no idea what they were selling. I got one of my rarest BuckTools for $40 (buy it now} the seller could have gotten 10 times that if he had put it up for auction, he had no idea what he was selling. I understand people that want to use their tools because you can not take them with you in the end. Just my opinion.
Simple answer - NoI don't see the need. If something needs cutting then cut it. It doesn't need to be a super rare or expensive tool, just one with a blade will suffice. Do wine connoisseurs guzzle their collection to prove the obvious that it tastes wonderful, ofcourse not. So why carry a collectors piece unless your aim is to show off or create envy. Neither of which interests me personally.My own view - is why would you risk losing, breaking, damaging something that in many cases you've spent months if not years trying to find. I find it bizzare almost arrogant those who abuse something special because they can. Bit like the local museum loaning out antiquities to be used... Because isn't that what they were made for??I don't see any difference. The thought of me actually using my Tim Leatherman signed Genus just because it's a tool fills me with horror. Why?? Why do so when a cheaper more readily available pair of secuteurs would do the job just as well.