I sent an iPhone to a buyer. I paid the postage and extra for it to be signed for, without paying extra for insurance as it was extremely hard to damage due to being packed really well.
I took the parcel 2 miles to my local shop. According to the tracking info, It made it to my local depot before being stolen within 3 hours by their employees . Hermes only refunded £23 after a 3 week wait as it wasn't 'insured'.
Just a warning. Insurance should be built into the price, but they give you the option to skip it to protect themselves against paying out from theft within their company.