Some people sell because they need money now. Some people sell because they need to move now. Those people won’t wait for prices to increase.
Your opponent in the negotiations doesn’t need to know that. That’s why its your Real Estate Agent’s job to negotiate a good price for you. If you got a good relationship with your Real Estate agent, they can possibly sell your home to a flipper (possibly working with the real estate firm) who can give you a fairer price while simultaneously making more money for themselves.