I am teaching how to make scrypt coins just for 0.5 BTC.
Create video tutorial. 
I teach through Skype and Teamviewer. There is no need of video tutorial.
You're not the only one on the internet that teaches people for a fee, these guys are wanting online video tutorials so others can learn this for free using a "visual." If you have to derail a thread with your "There is no need of video tutorial." in another words, no one should learn this for FREE? That clearly shows where your business model is.
I couldn't agree more.
Personal training has its merits for sure (the 1 on 1 approach), but for a lot of us, we just want to learn.