I don't think custom/handmade knives are only about performance or treatments, it's also about getting something exactly like you want. It's custom because you selected the maker, the steel, the blade type, the handle material, etc. It's unique, it's a reflection of the buyer every bit as much as it is the maker.
I finally ordered my first custom knife (A small fixed blade wharncliffe EDC from Alan Davis) last month because try as I might I couldn't find a production knife that had all the qualities I wanted. Yes, I added some fancy touches (damascus steel, mosaic pins) because I want it to be special for me, but I'm sure it would still have been great if I'd selected more utilitarian materials. I'm sure Alan will do a superlative job, but it's really special because it's my knife and not somebody else's.
I finally ordered my first custom knife (A small fixed blade wharncliffe EDC from Alan Davis) last month because try as I might I couldn't find a production knife that had all the qualities I wanted. Yes, I added some fancy touches (damascus steel, mosaic pins) because I want it to be special for me, but I'm sure it would still have been great if I'd selected more utilitarian materials. I'm sure Alan will do a superlative job, but it's really special because it's my knife and not somebody else's.