Organic SEO is a long term result while Pay Per Click is just for short period of time. But if you want to earn revenue easily PPC is the best.

I have stuck with the natural way to get traffic, however now that I have built that up and it is working, I want to try PPC.
I have researched it and it will have alot to do with what keyword is popular at the time.
When I built my website I had certain keywords in mind, however now others have taken over.
I know about the costs involved, however It will not hurt to try it for a month.

Pay=per-click is good only if you want to have a better conversion but it does not help your site in the long run.