Another thought... Years ago I worked as a commercial boat Captain for an independent boat towing service {like AA for boats - Vessel assist is the big dog in that industry}. The business model for all of the towing services, much like ERS and others is based upon actuarial tables that tell them how many customers will require their services.
For most of these businesses the number is 92%... that will never have a claim and their premiums are pure profit. The other 8% will benefit but never underestimate the ability of the insurer {or lack of a better term} to dodge and mitigate their costs... at your expense. Bottom line is that industry wide roughly 9 out of 10 consumers never need this coverage so like the man said... Do you feel lucky well do ya?
:B