There are times when travel insurance works and times when they are just a burden. To determine whether or not you will buy, take note how much the trip costs and compare it with the cost of the policy. Is it worth covering?
Is the travel insurer independent from your tour operator and licensed by the state? If so, buy their insurance. You would be safe if it’s independent because if the tour operator goes out of business, they wouldn’t be able to pay you back.
Read the fine print – what are the rules regarding your policy? If you want to cancel, sometimes more than half your vacation has to be delayed.