I use MusicPro insurance - www.MusicProInsurance.com
. They understand that instruments can actually appreciate in value over time (unlike your homeowners insurance.) They provide funds to rent instruments while your lost gear is being replaced. Rates seem reasonable to me. It's "all risk" insurance, which means you're protected against just about everything except nuclear war. Back door of your trailer comes open and your gear falls out? It's covered. Forget to do an idiot check at the end of the night and drive off leaving your $4k PRS axe in some dark corner? It's covered. Drunk spills beer all over your pedalboard shorting out the whole thing? It's covered. Plastered fat lady falls on her posterior and lands on your spare Martin acoustic? It's covered. Easy to make changes to your equipment list online.