Final Fantasy Is Not Linear?

So yesterday if you didn't know Final Fantasy XIII-2 came out, and if you didn't know I am a big fan of the series. Over the years playing you come to expect a story, which is extremely well written, but for the most part is a very linear progression of a game. Sure there are always moments where you can somewhat venture off, but the result is you always go back to where you should have been to progress through the main story's path. I have never had a problem with this style, but I know over th

World of Warkraft...