Your home has many values; one to the tax assessor, others to your lender and insurance company and yet another value to you, the owner. It also has different values to buyers, depending on their needs desires and financial resources.
The highest realistic price for your home will ultimately be determined by the market. It is highly unlikely that a buyer will pay more for your property than would have to be paid for a similar property with like amenities and features. All other considerations aside, houses that do not meet the current competition in price and terms simply DO NOT SELL.