It's all mindset. Like driving a really nice car vs. a beat up old rust-bucket. The beater car gets driven hard, parked in narrow spots, beat up, banged into, and hailed on while the nice car gets driven on sunny days.
Personally, I'd rather drive a really nice car every day and enjoy it. It's almost a relief when that first door ding, scratch, or rock chip happens.
As for knives, I love carrying and using a beautiful (or at least aesthetically pleasing) knife. I won't carry a knife that is, in my mind, ugly. Sure, they get scratched up, but they bring satisfaction. And when they get dirty, I clean 'em up. I guess that's why I don't let myself buy $1000 knives. For one, I can't afford it, and two, I'd hate to have a knife that I was afraid to use.
--nathan