...it's really not hard to foster a long term relationship, even though business relationships are a bit more complex than a simple friendship. They definitely share some of the intricacies of a marriage or significant relationship. And it's easy to take good relationships for granted and forget to give them the care they need to last a long time.
Over the years, I have seen MANY people post on the forums "How much should I charge?". Truthfully, it's not the easiest question to answer. But, more often than not, 3D artists are charging less than they should. Not only that, but they are also setting a poor precedent in how they communicate their fee to their client, setting themselves up to be walked on by their clients on future projects.