Don't we all buy stuff, to one degree or another, because we "want" vs "need?" Who needs a sports car or fancy clothes?
The cabes I have... kimber and monster, were bought over a period of years. I can't stomach dropping $1000+ for wires... believe me... but buying a set here or there doesn't hurt as bad. I do think there's some benefit to higher end cables... at least if all your cables are of similar caliber with high end components. I think there's a commulative effect perhaps. Can I say that I definitively hear the difference, I don't know... maybe, maybe not, but I "feel" things are better and I lack the question mark in the back of my head that tells me I could be missing out by connecting with cheap cables... that's worth a lot to me. I refuse to believe that high end cables are worthless, 1 - because I have some and I'd feel like an idiot, but 2 - the market/consumer wouldn't stand for it... at least not over the long term like it's been.
Sometimes perceived benefit is just as important and real as the real kind.