all i'm sayin' is that to be 'canon,' 'screen accurate,' or to have the 'signiture' look you gotta have the dirt. I have no argument that in real life that the troops stationed there would have their armor clean sometime, or even in the Star Wars reality they would clean it eventually. As we see them in ANH they've had a long day, they lost and went looking for 2 droids who went in different directions, they've been bending down to pick up pieces of said droids to follow their path (any of you guys with trooper armor tried that?
), riding on the backs of giant lizards, blowing up a sandcrawler, killing 2 farmers, setting up road blocks, and asking people about their droids. That's a pretty exciting day for a garrison stationed on a backwater planet on the outer rim.
oh and btw thanks for your service all of you who are or have been in the military. You deserve all of our thanks and praise. 
