What should you know about coin dealers?

Whether your buying or selling coins, you will probably need to know how to identify good coin dealers from the bad. We can't possibly cover every situation, but there are some tell-tale signs of good coin dealers that you can look out for. Do they offer a decent return policy? Are they accurate in how they grade coins? Do they support local or national coin clubs? Are they willing to spend time talking to you even though you might not be spending thousands of dollars with them? Common sense questions such as these are not foolproof, but will help you identify decent coin dealers among the crowd.