haha, you need to learn how to negotiate. (All fees are negotiable)
It doesn't help that trying to buy a house in many markets is restricted to those who can pay entirely in cash within 2 days of listing.
The offer is an agreement on the price of the house, due diligence and earnest money from the buyer, contingencies (buyer needs to sell their own house) and any concessions from the seller (repairs, money at closing, etc).