Actual Cash Value vs. Replacement Cost
If someone were to break into your home and steal your highly priced electronic possessions, would you be able to replace them without having to pay out of pocket?
If your policy agrees to reimburse you the cash value of your property but factors in depreciation, you will have to pay a part of it yourself.
If you have more expensive property than you thought, paying a little more for replacement coverage may be worth it.