I think one is enough to give the person a feel for the sport! This one flight is far more then I ever got! I had to build something to get my first flight, join a club and the AMA! Why is it we think now days that we have to make everything so easy for people, that they just can't run into any obstacles; or, they will loose interest? If they are that light on commitment, I really don't care if they are interested in the hobby, anyway.