I carry knives that are nearly as expensive as the ones I keep in the safe. For instance, I carry a Kwaiback, Combat Troodon, custom ZT0560, and an Emerson Iron Dragon at the moment. The most expensive of the three, the Troodon (it's a limited edition Star Wars variant) ran me $600. The most expensive knife I have in my collection ran me I want to say $1100, which is a custom TAD Kwaiback.
Most of my collection is comprised of variants of my favorite model, the Kwaiback, and because I carry one already there isn't a point in me sullying the rest. I think I have around 8-9 of them at this point...I've got problems.
Regardless, because of the cost of my carry pieces, I also carry a SAK on a daily basis to handle all of the grunt work I wouldn't want to use a folding mortgage payment for. I'm not going to use my Kwaiback that ran me $500 to break down boxes, cut zip ties, and hand off to whomever is knife-less and in need that particular moment. That's why I have the $30 SAK.
For this reason, I have kept my carry pieces in pretty pristine condition. The only one that has logged any significant use is the Kwaiback, which I just got back from
@razor-edge-knives with a stupid sharp edge on it. This system works for me and allows me to have some peace of mind knowing that if god forbid something disastrous ever happened and I needed to liquidate my collection in order to weather the storm, I can do so and come out the other end more or less whole. As superfluous as my knife collecting has become over the years, I always try incorporate a level of pragmatism in order to stay grounded. If I can't buy something and not lose my ass, I don't buy it.