S&W had a line of American made knives, that were of good quality in the 70s and perhaps through the 80s, I forget the cut off. If you keep an eye on Ebay, they sometimes turn up and get overlooked amidst the PRC ones. You sometimes find the brochures for them in old revolver boxes, since cross promotion goes back some years.
The current S&W branded knives are made up by Taylor Cutlery who has vendors in China build them. Quality is usually mediocre.
The current boot knives are around 20 bucks or less. Though without the logo and in a crappier sheath, the exact same knife can be had for as little as five dollars. The tips break off if you stab anything hard with them.