What Difference Does it Make? -- Treasuring the High King of Heaven in Our Worship

What's the difference between Psalms and the best of hymns (which are, necessarily, psalm-like and Scripture-rich) v.s. much contemporary worship? Christ Himself--both in the content, and in the living reality of how He has chosen to give Himself to us. If the difference is whether or not we are truly treasuring the High King of Heaven in our worship, then it is really all the difference in the world.