I have a working inventory of all tools above $5. Being in hurricane alley, I can't afford not to know what I have for insurance purposes. The aggregate replacement cost is so high (above $25k), that I need a separate rider just for them, the bicycles, fishing gear, etc.
When I worked two summers doing low voltage installations, some of my Klein hand tools grew legs. Only by marking them up beforehand was I able to get them back.
I won't lend tools out to anyone, not even family, if they are worth enough to me.