However I've been thinking lately about this: With large folders, why pay the added costs in $$$, the extra weight penalty (due to locking/opening hardware), and the reduced reliability of a folder? Instead, for folders why not just stick with small to mid-sized folders for EDC/pocket type of use, and for any blade in the 4" or larger vicinity, just get fixed blades?
Somebody chime in here and convince me why large folders are still useful for more than defensive use, and why they still deserve a place in your kit. Why is it still useful to carry a large folder, rather than just carrying say a medium folder for EDC, and then adding a 4" or greater fixed knife for hunting, camping, survival pack use?
People pay, including me, because we have the money to spend on something we like. A Buck 110, Delica 4, Case Peanut, and a larger fixed blade/machete should cover almost all the knife tasks I've ever encountered. But I have a few other knives because that is what I choose to spend my extra money on. When someone is using extra money and not buying something out of necessity, they are mainly paying the added costs because they LIKE whatever they are buying more than, say, a fixed blade - due to aesthetics, everyone else has one, social statements. More money for a folder the same size as a fixed blade has nothing to do with this idea, it's about what people want to spend their money on more.
Now I agree with your reasoning that if one is going to carry
out of necessity a +4" knife, then one should carry a fixed blade. If you are doing kinds of work that
require a blade that large, then the knife will probably be put to hard use, and would therefore need the ultimate strength of a fixed blade. The only instance where I could see a large folder being needed without the added fixed blade strength is for food preparation, like large fish filleting or possibly meat carving, and then again fixed blade ease of cleaning should win out on that for professional food preparers (I never see folders on Iron Chef). I feel like outside of that, a +4" folder is only carried for defensive purposes or because the person carrying it likes large folders more than fixed blades.
Personally, I find my Endura too large for EDC, but I only cut things around a farm, so I find the larger blade to be too much for my needs. My sweet-spot for folders is 3.25" to 3.5" and anything larger I would much prefer a fixed blade, because the job at hand requiring a larger blade would also require (for me) the strength and ease of cleaning of a fixed blade. It has changed from an
Every Day (Carry) task to a "I have an out-of-the-ordinary task to complete. I need a specific tool (the fixed blade) to finish it."
Or, to sum it up, people will buy what makes them happier, whether that be a large folding blade or a small fixed blade. Desire beats out reasoning all the time in the world. Just like my desire for the Spyderco Endura FFG and the Kabar BK14.