Like guns, knives are also Male Jewelry. If it makes you feel sexy wearing it, then it is worth it. Having a finely-crafted piece of steel is always a joy to own. Good materials, balance, and looks make the item a lovely thing to claim as yours.
I must say I have been carrying and using some "base" steels and blades for a long time without caring. A lot of Gerbers, Buck, and Cold Steel over the years. Even the new Taiwan stuff is not bad. I still have all of them.
I like the Taiwan stuff for reasonable quality and blend of price. If I damage, or lose them, I do not cry. I may buy knives just because I like the shape of the blade or grip. It may be a copy, but if it works for my non-SealTeam-Kung-Fu-Ninja box-cutting or fruit slicing applications, I am happy.
I know I can use all kinds of pointy and sharp things for self defense. Hell, people in poor 3rd world countries and Special Force-Green Beret types use sharpened sticks with fire-hardened tips to improvise deadly defensive weapons.
Having said that, I must say the $400-500 Microtech knives are lovely items. I think a lot of it is based upon the cashing in of the blade design, time to hand make the blades, and choice of specific metals. Those Chris Reeves are the cat's meow.