Reading the Bible all the way through should be one of the significant goals of our lives.
Speaking for myself, spending the past 90 or so days (August 2011 through November 2011) reading through all of God's Word has been one of the most life-changing things that I have ever done. Yes, the knowledge process is good. Yes, watching God weave History for His purposes is exciting to notice. But there's more; there's the change of heart.
I have personally spoken with many people who have seriously taken on this challenge of reading the entire Bible in 90 days. Those who are "keeping up" are energized. They are committed.