When I had a bunch of planes and tools stolen from my car, having documentation such as photos and catalog pages showing current prices enabled me to not only get back almost the entire price of what I lost, but because the documentaion saved the insurance company a lot of work and research, they waved their usual partial payments as things were replaced and gave me a single check for the entire amount less the deductable. Had the check just 3 hours after I turned in the claim. Without the documentation, I would have recieved a partial payment a couple days later, then recieved further reimbursement as I submited reciepts showing my purchases.