The numbers given by the broker sound quite high for title insurance which should run under $200. Whether you get it is a matter of choice. It protects against claims by others asserting your legal title to the property is not valid or is subject to liens or other rights created before you acquired title. The scenarios:
1. Most likely: the seller has title free and clear of liens (except perhaps a mortgage that will be paid off at closing), the property is not currently subject to any title dispute (such as a divorce proceeding might create), and you will will never face a problem.
2. Outside chance: something has happened at least creating a possibility of a title issue or a lien; for example, there is a divorce proceeding going on where ownership of the property is at issue, or the seller signed over rights to the property to someone else like a relative, or the seller had a gambling problem and paid off his debts by signing a paper granting any interest in his
DVC property to someone named Knife. Those disputable intersts may or may not be recorded with the registrar of deeds. If unrecorded you likely win a future court battle over title anyway. However, that is the kicker. Someone who thinks he has a prior interest in the property sues you to get back title even though that person may have a weak case. Your legal fees to defend that case even though you may be entirely in the right and ultimately win: $10,000 to $30,000. Title insurance indemnifies you for what you paid for the property if title proves to be invalid. In addition, and far more more important, Title insurance defends you in any claim over title and pays all those attorneys fees and court costs.
Personally, I would buy it; others are more willing to take the risks.