TWR, the benefit of FFP reticles in a 1-4 or 1-6 is the reticle, if designed right, can be used as a red dot on 1x and a mil or MOA scale reticle on 4 or 6x. It's not the best for all reticle types but it's nice with some. For me, FFP reticles don't become a necessity until you get into scopes with magnifications in excess of 15x.
Last edited by CBMJR; 11/27/14.