Jesus didn't mean this as a sweeping command for everyone who has a lot of money. Jesus meant this for any of us who wallow in whatever abundance we have. I imagine Jesus looked straight into this young man's soul and said, 'I want you to give up the one thing you crave more than me. Then come, follow me.'
Made to Crave: Satisfying Your Deepest Desire with God, Not Food (ed. Zondervan, 2010) - ISBN: 9780310412373