From a sales perspective:
I'm (usually) thrilled to go out and talk to customers, and do a site survey.  It gets me a face-to-face with a decision maker, and allows me to "show off".
I will straight up tell customers that "we're all the same, give or take 10% or so" and have told them "You can't sell 
signs - I'm here selling me".  The candor and honesty combined with blatant advertising of skill works wonders - 
but none of that happens if I don't get to meet them.
My conversion is up around 50%, and I'm managing ~75k of jobs currently.  Gotta be doing something right.