I think with the push toward Praise & Worship, and much less Urban, or contemporary gospel being played in church now I really don't see as much of a need for the five string except for embellishment. Much of the gospel that I played early on was in either Eb or Bb, where the use of a 5 really came in handy. Now, most of the stuff I play is in (what I call "The Happy Keys") C or G. I can get away with a 4 string.