Concept art is getting bigger and bigger. More people know what it is nowadays, it gets shown in the media more often and more books get released. This automatically results into more people wanting to become concept artists. So many artschools are now creating special courses all towards game art or concept art. (Game art can also include UI design, 3D modeling etc.).
Yet it is a fairly new thing to most people and the idea of "becoming a concept artist" has grown rapidly over such a short time that a lot of people who are new to it seem to get a lot of misguide info. I am going to try to list this misguided info and direct you to the correct info.
(Again I would always advise you to do your own research and form your own knowledge and not just simply agree with what you read online, not from anyone, not from me. Even though i'm right .. ofcourse. *wink *wink )