Is the RPG a niche genre?

[Commando]

I think I will put the notion out that sales/popularity don't reflect whether or not a game or genre is niche or not. This is obviousdly an argument that we can go back and forth on for days, and it gets worse if you try to debate whether or not a game is a niche TARGET as opposed to niche or popular SUCCESS.

I propose for the sake of argument that we define niche to be focused to 1 particular taste and the group thustly represented.
Next, is whether or not we are affirming this notion based on proposal or perception. or to say it in laymans terms who the company made the game for vs. who actually bought it.

If we are to say that sales defines the title, than the RPG genre is considered niche if pretty much, for the most part, only RPG fans buy RPG games. There could be 10 million RPG fans, so Final Fantasy XIII could sell 8 million copies and still be niche.

..... At this point I forgot where this was leading to and I gotta get back to work, so I'll just say that.. yeah unless we actually knoe the profile of the vast majority of those who buy it than we wont knoe, so elongated debate is useless, however most of us have an opinion and that is fine of course, but I guess I just wanted to say high sales doesn't mean it isn't niche.
sorry for rambling.