We are having fun using the drug dealer operating plan. Get the client hooked on free, then cheap then move up to full price expensive product.
We flew a little tiny project for one company that is a surveying company. It was truly right off the airport and we could shoot it on the return to the airport, then just make one extra circle to drop altitude before we landed. We did it for free, since they were using it to show a client a bid proposal. They got the project, and we go a bigger area real flight for money.
They are loving the fact they don't need a ground crew of several men, a truck or two, and days of slogging through ravines and creeks and poison ivy with expensive equipment. Since they are the survey company they can verify the data, and sign off on it. The next project will have a little more padding in it, just because it should.