Teaching how to break wifi connections.?

I am thinking of holding a 4 to 6 hour workshop on Wifi hacking that covers hacking WEP, WPA and defeating MAC filtering and hiding the SSID, would it be worth $100 USD to $200 USD per head?

I would include open source tools used in the workshop.

At the end I would provide advanced ways of protecting your network from these various forms of attack.

Please no comments on how this is illegal. I've been to several seminars that teach you about these tools.