The document provides several reasons why people purchase sex dolls. The top three reasons given are: 1) for a better sex life, 2) for companionship and to fight loneliness, and 3) for safety since there is no risk of pregnancy or sexually transmitted infections. Additional reasons mentioned include satisfying specific fetishes, lack of stress or nagging compared to human partners, and the ability to customize dolls to people's exact preferences. The document argues that sex dolls provide a safe alternative to pursuing real relationships or engaging in infidelity.