Yes! Marketing is far more complex than this, and a forum for video game speculation could never even touch the surface and nor could all elements ever be addressed...
So to your point of the evangelist, I think that BGS has a pretty solid base of hardcoe fans that aren't "in the loop" and I highly doubt whatever their next project is will "fall on its face".
My point was in regards to marketing strategies there are ways in which you can sell more of a current product, or launch a new and successful product from an existing product line. They are just marketing options to increase revenue. This is nothing against the hardcoe fanbase, as BGS actually does a much better job for their fans than many companies do (these well regulated forums are a fine example).