This question is interesting on a knife forum because unlike cars or watches so few people are going to know how much your knife costs.
Also, I think we all took this to mean EDC knives and not something like a kitchen knife, where there is definitely more to be gained by spending more (of course subject to diminishing returns as well).
Also, knives hold their value (more than some other items) especially IF you keep them in brand new condition.
What's odd about this "hobby" or getting into "flipping" knives for profit is that you really have to keep them in perfect condition to make the most money. Unlike firearms where people seem to be more willing to overlook a couple of dings, imperfections, etc. You can buy a really expensive gun, use it a bunch, and still expect to be able to get most of your money back, or even make money whereas with knives I see phrases like "snail trails" where "serious" collectors treat knives like comic books or baseball cards where any little blemish will significantly lower the value.
The biggest problems I have are 1) how much the people that buy multiple examples of a knife to create scarcity and an almost "artificially inflated market" (great example would be the Spyderco Slyz Bowie) ..although I am sure many of you will argue how that's phrased... 2) there are a WHOLE LOTTA knives that go for over the $500 mark that really don't distinguish themselves in any meaningful way. Gray hunks of titanium with maybe a little CNC work or minimal differences with similar blade shapes and materials.
So yes, I personally think it's dumb to buy a $500-$1000 knife that looks mostly like 5000 other knives out there and then lock them in a safe to make a couple hundred bucks or break even in a few years ... just to pick them up once in a while to fidget with, being mindful the whole time that any tiny scratch is going to lower the value.
I spent a lot of money on my Wayfarer and Ilya warned me that the particular anodizing and options I chose was going to result in a knife that looked banged up pretty quick using it for an EDC. But it serves me well, I am fine with all the scratches, and it's a beast. I don't do dumb things like "batoning" wood with it, but I do use it for everything from working in the outdoors to cutting up food at festivals, surf fishing chores, hunting, etc. It's still very much reliable.
A good chef would probably feel the same way about a knife that fits their particular way of prepping food.
I do not regret this.
On the other hand, I only a Sebenza for a month because it didn't suit me, and I knew that if I made a "user" out of it not only would I not have enough knife for all the stuff I needed it for, but I'd lose money if I wanted to sell it.
Then there's something really unique like my Stinger in SM-100 where I may not use it much, but it is interesting to see how well different types of sharpening stones work with it. It's a totally unique metal and scarce, and I enjoy comparing it to steel knives and experiment with things like how temperature affects the action (and even sharpening), and the because it's a weird type of blade material it still is a novelty.
Same goes for really different blade shapes- I haven't gotten around to picking up a Grimsmo Norseman, but I would buy that knife at the right price just to experience the pros and cons of such an unusual design.
The flip side of that is something like a Rockstead (which I realize is unfair to criticize since I have never owned one), that to an outsider looks like a design that would very easily be cosmetically damaged and relying on a "like new" condition edge to be so amazing. As in, the design is different enough to warrant more money, the steel is unusual, the fit and finish look great, but seems like it'd be really easy to dull it and hard to bring back to that super-slicey edge, plus it seems like any use at all would severely impact its value. There's no place in my life for something like that.
And then of course there are "classic" knives from famous makers at the $10,000+ price point which to me are no longer really tools but more art to be displayed. Loveless knives are the perfect example. Bob originally wanted to see his knives being used, but quickly realized that it's insane to sell one of your knives on a working man's budget only to have the buyer flip the knife for thousands. Sure, they are great designs, but who would buy a knife for thousands or tens of thousands and immediately depreciate its value by using it?
Long story short: no one is going to look at your knife as a status symbol, so buy the one that you can appreciate every day and actually use. The extra couple hundred bucks I spent on my Olamic Wayfarer 247 are worth it to me because I enjoy looking at it every single day and it can tackle the toughest job I need it to.