I have always used fixed blades. For about 30 years, I’ve used a Schrade Sharpfinger, I like the shape of the blade and the grip. It takes a keen edge that lasts just fine.
My experience has been that I’ve never had any issues with getting or keeping a knife sharp, so I’ve never felt the need for replaceable blades. As with any tool, once I learned to recognize the signs that the knife is dulling, a simple touch up with a sharpener that weighs 1 ounce puts the edge back. Sharpening is easy and fast when you do it before you totally destroy the edge first.
what I have found is that I keep going smaller in sizes.
Totally agree, I’ve gotten rid of bigger knives, it just does not take that much of a knife to field dress a deer.
Obviously, for backcountry hunting where an animal needs to be caped and broken down, the answer as to what is needed is totally different.
Grouse