I always thought droppers were stupid and for dh brahs...until i rode one on a serious ride. I now find myself using it everywhere. Lumpy Bumpy/Tigersblood? drop it and gain extra maneuverability. Nassau/6mi? rail every corner like your on a BMX bike
Really, for what a Fox Transfer and lever weigh, and how well they work, except for all but the most diehard pro level xc weight weenie, they make 110% sense imho