Some of the benefits of having a logo include:

making a general name unique If your name is descriptive, the addition of a logo adds to the individuality of your entire brand. This is what every business should strive for.

giving your brand "personality" Think of virtually any famous name and what it would lose if their logo did not exist. Imagine if McDonald's didn't have the 'golden arches' or Nike didn't have the 'swoosh'? Would their brands be as strong today if that image wasn't imprinted on the minds of most consumers? Would those brands have the same "personality" based on name alone?

establishes brand identity One of the goals of establishing brand identity is to get customers to remember who you are and to get them to come back to you. It is possible for customers to remember you by name alone but, without a doubt, images stick in people's minds a lot easier than words. By combining a name and logo together, you're that much closer to getting that customer to remember you and to call you again.