As King Solomon found out, it's never enough. Even if you have every pair of limited edition basketball shoes ever made, there will still always be something missing in your life. There is a void in the human soul that can only be filled by the presence of God in our lives. That means that everyday, every hour, every minute, in every decision we face, we must make a conscious choice to follow God. We must dedicate ourselves to removing from our life anything that we are placing ahead of God.
Problem is, that is exactly the rationalization that the rich, young nobleman used.
He had done just about everything that was required of him. He wanted another box to check off on the eternal salvation checklist. Jesus was telling him to change his heart so that GOD was more important that wealth, or power, or any worldly possession. And like that man, it is very difficult at times for us to change our own hearts about such things. Jesus makes the same demand of anyone who would choose to follow him.