want need to understand people? Go and make it on your own. Why? I’d rather say “Why not?”
I know there’s a lot of information available on the internet because Google makes it easier for you. But I will give you just some reasons to do it yourself:
a) Doing this makes you different
b) Can you be sure all these seconday informations were correctly analysed?
c) You might find something others don’t know yet, because…
d) people are always changing
Go and make it. And after that you should write a post on your blog either. A short blog post about your experience.
Marketing is about people.