This is an instance when you should seek the services of a Realtor who specializes in buyer representation to work on your behalf. That person could compare similar properties (Comparative Market Analysis) that have recenly sold, making adjustments for any differences in square footage and amenities, and help you determine a price at which you would want to make an offer. They will also walk you through the complete home buying process; lending, attorneys, home inspections, etc. The fact that the property has been on the market for two years should tell you something about the price (unless the location or home itself has some detraction). If the listing agent/builder is showing the property to you tomorrow keep in mind that they are not working on your behalf, as that person has their loyalty with the seller and are required, in New York state, to disclose this fact to you in writing upon your first meeting (called an Agency Disclosure). They are also obligated to take back any information to the seller about you they learn through your conversations during the showing, so it would be wise not to disclose any financial information that might weaken your bargaining position. Don't worry If you do not find a Realtor to represent you prior to viewing the home tomorrow, but you should get any available information at the showing to give the person you later select to represent you to do the comparative market analysis prior to making an offer.
Best of luck in the search of your new home!

Paula Kamperman, ABR, e-PRO, GRI
Licensed Real Estate Broker
Martinez Family Realty
Hoosick Falls, New York

You can offer anything you like, but it's a good idea to get information from an expert on how much similar homes have been selling for in the area before making your offer. Ask your agent for details of recent sales, and make sure that agent is representing you as the buyer, not the builder as the seller. Study closely what they give you, each home is different and various features will add and subtract when compared to the one you are looking at, then take view on what you think is fair market value TODAY. What he was asking for it 2 years ago is not relevant to today, neither that it has been on so long. There are plenty of gorgeous homes out there that are very reasonably priced, but not selling for almost inexplicable reasons. I'm sure the builder will be delighted to receive your offer, even if it's not accepted, but make it through a Buyer's Agent, who will help you work out the right price to offer, which is going to save you money in the long run.

You can offer whatever you feel it is worth. Decide what is the very most you would pay for your new home in such a way that if it sold for $1 more, you would not be sorry. When you offer, come in strong, but leave some wiggle room for negotiations. Do not set a price over your head, but remember, you are not buying a car, you are purchasing a home.