Reinhardt,

These guys didn't get to be known as the top guys at what they do by sucking. Do you really think a copywriter could get away with charging $15K for example if their copy did not convert?

On the off chance that your $15K letter doesn't convert as well as you'd hoped, then your $15K copywriter will do rewrites until it does. As a top level service provider, reputation is everything. If you're a cent-per-word article writer, who cares if you're a day late or subpar with your customer service. But when you're at the top, your client's success is your success, their failure is your failure. A happy client turns into a returning client.

It's not possible to guarantee results with such investments. If it was, everyone would be rich. You're taking a calculated risk by investing in something like this. Plus, not everything depends on the service provider - what you bring to the table affects your results as well.

Cheers,
Curtis