Look at it like this. I have a basic work truck and decent open trailer both with nice vinyl signs. I run my business like a business and get noticed alot. I had a customer that I acquired from buying out another business, while servicing her property I spoke with her about a project she had going on that required me to scalp her lawn before an application. She told me that she would call my OFFICE when she needed it. Now I tell you that to let you know this that looking professional will lead customers to think you are a professional. My office is my truck and cell phone, but I don't mind her thinking I'm a crew leader working for a much larger outfit.
Knowledge is knowing a tomato is a fruit, wisdom is not using it in a fruit salad.