Symmetry - Gotta have it!
As an example, my favorite loadout on a Barracuda is two Stunpulse guns on the tips and Wakizashis ("souvenirs" heh heh) on the fuselage. I know it would make more sense to have one Advanced Stunpulse and another gun or missile on the wingtip, but I just can't bear the look. Currently I'm flying a Dagger in L2 with four Drails and one Stunpulse Turret. I just can't stand my ship looking lopsided at all - I won't combine Starbeams with Justices, and I never buy missiles, only Cruise DIsruptors.
Anyone else? Or am I just obsessed?