We are building a new house and asked to upgrade our paint from flat to eggshell. We were told the upgrade would be $9000 because eggshell is so much more expensive. I did a little research, and according to the paint store, the paint contractor we are using actually gets a better price on eggshell, so they are totally ripping us off. Not sure if the builder is in on this but I'm not sure how to handle it to our advantage. Any advice?