If you have a lot of resources and have enough money to compensate your needs.. then selling your Bitcoins is not an really option. You should invest with your Bitcoins rather than selling. Just my thoughts. 
Obviously, if someone already have money in hands and he does not need anything then he would probably not like to sell his coins as we all know that bitcoin has the potential to grow higher with the time, but the ones who sell their coins are those who needs money and they have no other option than this.