If you are going to make money, you have to treat this as a business. Right ... and artistic people (myself included - so I'm not pointing any fingers here) have a tendency to let their emotions and ego rule over their thoughts. After all, art IS all about feeling. However, the mix of emotions and business is a combination that doesn't mix well - it's like oil and vinegar. But sometimes you have to step back and look at the bigger picture before you take action.