The actual cost that you should pay and more importantly, you are ready to pay for the freedom. When you have already determined it, you will come to know what you want in your life.
Having been raised under the mantra "follow your dreams" you are not at all in mood of apologizing for what you love to do and yes, nothing wrong in that until and unless you are harming someone.
It is a process of taking charge of your own life. It simply gives the ability to live your natural being, the way you are and the way you see yourself