Would you buy a product, course?
I won't say that it's wrong. Actually, I do buy products on a regular basis to get new ideas, so I believe it's totally fine. The question is: do you know any other way to learn different methods and find out what's working for other marketers?
We tend to see ourselves as internet marketers only, so we try to learn from products for IMers. What we often times ignore is the fact that we are consumers as well, and, as a consequence, many marketers target us with their campaigns.
All the time you're being bombarded by ads, promotions, etc and many of them are effective, but, if you are just like I was when I was getting started, you probably ignore them and learn nothing from what others are promoting to you.
So, start paying close attention to all the advertisements that you see. Pay attention to FB ads, AdWords ads, viral campaigns on Facebook, popular videos, mailing campaigns (even spams), etc...
If you start doing this, you will rapidly learn the secrets of the successful fan pages, YouTube Channels, mailing lists, etc... Instead of just looking for products to learn methods, try to "steal" ideas from the advertisements that you see on a daily basis.
It opened my mind for a whole new world of possibilities... give it a try, too!