But it's not priced for the market of people who buy lots of knives. Because those who buy lots of knives aren't going to be interested in some mediocre knife with a vibration motor attached to it.

Those who are interested in knives would be able to get a more impressive knife for $399. And they are usually the type of people that enjoy sharpening a knife until it cuts better than this ultrasonic knife ever will.

This is a product which is targeted at people who don't really know a lot about knives and prep their meals with a dull blade.

Yeah I mean, the product is either going to work or it isn't going to work. But the only people who are going to be early adopters for this are knife nerds. Obviously, you'll get a knife that r/chefknives admires for cheaper than that!

I'm not hyping the product. I keep a knife set up to easily slice tomatoes, and if I don't want to clean it carefully afterwards I just use a good thin serrated bread knife. I'm still not really sure what this knife is "for". But I'm also not ruling out that it is "for" something interesting.

Why do you think the knife is mediocre?