Mixed feelings on this subject... Back around 92-93 I shook on a deal as the seller... Gave the buyer "a few days" to get their financing sorted... Then had a person wanting to buy the car with cash in hand... Offered $250 more than the handshake deal.... But was wanting a deal today cause it was for the daughter who had to leave for college the next day.... I honored the handshake... And the "buyer" flaked...
From that day forward money in the hand is better than a handshake....