I used to rent a flute to play when I was very young. My parents never bothered to buy me my own flute as they knew that any day I was probably going to quit playing the instrument. They were right, I quit after some time. Only because I quit playing the flute many years ago does not mean that I am going to quit playing my guitar if I have a chance to learn to play it one day. As an adult, I would probably prefer to buy my own guitar from musciansfriend instead of renting one.