Seems to me one should acquire an aero bike after all the personal aero improvements have been made. What is the point of an aero frame if you are sitting up with your hands on the tops most of the time instead of riding aero bars in full stretched out position, or if you don't shave your legs, or if you wear a regular not special aero helmet, or if you just wear a regular clothing kit instead of a super slick Olympic style full length tights and jersey. See my point? The compromises in comfort of a aero bike don't make much sense if you are not 100% dedicated to aero riding. Not to me anyway.