they don't actually put in as much street work as the net would make it seem, allot of the pieces are at chill spots, there are also legals etc... you have to pay attention to the context.
edit: forgot to mention that unlike people who are hardcore into getting up, these guys will do one super hot spot, instead of doing a mess of fills all over the place. gets more play....
also, people really don't give a fuck about graffiti, especially not as much as graffiti writers do.
i'm not hating on these guys, it's just truth. they are good painters, and sure as hell have allot fo kids on thier jock, which unfortuantely causes some serious ego issues. but hey its graffiti, which is possibly the most egotistical thing on earth.