Even though this post is very old, I wanted to respond to it, like others have, to educate sellers and buyers. Many sellers and even buyers feel obligated to the first person that they meet. However, by doing this, you are doing yourself an injustice. Think of yourself as the head of HR of a corporation and the agents as people that are interviewing for a certain position. We are all trying to get your business and one agent may suit your needs better than the other. You may interview 5 different agents and even decide to work with the first one that you saw, however you will never know until you hear and see what the other agents have to offer.
This concept also applies to buyers. Most every agent will ask you to get a pre-approval before they take you out to see any home. This is for a few reasons. The first being that we need to see if you can even get approved to buy a home. The second is to find your true price range which is done best by seeing the limits of the pre-approval. Lastly, no one wants to waste their time, not even you. Getting a pre-approval will save you hours upon hours of time over looking for houses blindly and not knowing how much you can afford or if you can even get a mortgage.
So, Interview with different agents and different brokerages and see what your perfect fit is. You are not locked in withor more importantly obligated to anyone until you start signing your name. So before you do, interview, interview, interview.... more