Good way to market consulting services

This guy has a good idea for marketing his consulting services.

1. write a book
2. create a sizeable video lecture (high on information, low on sales pitch)
3. advertise a free $99 value, pointing people to your video
4. raffle off an hour of consulting time to people who blog about video

http://appsumo.com/google-analytics-video-2

* traffic is driven to him because of the $99 offer
* saves time because anyone who contacts him has heard the core of his sales pitch
* anyone who blogs about him has some skin in the game, and at the least is more likely to buy his book
* anyone who actually wins the raffle is likely to purchase at least a few more hours of consulting
* blog traffic will up his rank in google search