Okay, now I switched to USAA and they actually reduced my homeowners insurance when I took out an additional rider for my jewelry and remaining instruments which actually reduces my total insurance cost! (No, I don't work for USAA).
You are wise to take out insurance for your instruments for fire, theft and flood, no matter if you are a renter or homeowner. Word to the wise...although I never thought it would happen to me - it did. You never know what the future may bring.
Protect your babies (herd/instruments or otherwise). :-)