I think there is a certain (ego?)psychology in having a ground stack per side a la HK Actor DX . We all love PA to look the biz out front dont we?(even if its not cool to admit it) and it is part of the busines game. Where HK score is that its easy, off the shelf, pre-configured and despite a rep for being a bit flimsy, it looks cool and sounds good for price. Cant help thinking the competition is missing a sales opportunity! Of course get ins/outs as a one man band is always a leveller when buying bigger bits of kit. I once ran an EAW KF650's/SB600 system on my own....ouch......heavy!