Sometimes, the difference between an amateur and a professional can make all the difference in the world.  Amateur lawn-mowing services probably won’t affect your business in the long-term.  They may mow the grass in front of your building a little short, or miss a few spots with the weed-whacker, but most clients probably won’t notice it.  However, if you present a client with a business card or flyer designed or printed by an amateur, this could truly affect if the client’s image of you.  Nothing is more embarrassing than a poorly-designed piece of printed material with blurry font and pixelated images.  True professionals will create you a design that will be crisp and clear from a 2×3″ size to a 10×20′ size.