Core or Casual: Which of the two markets are more important/desirable?

[Jexy]

There should be a separation there.  Core is more important to the development of the industry as a whole, really to any industry.  This is the same reason that automobile companies build race cars and compete in Le Mans and the like.  It makes for better progress and pushing new boundries, which eventually trickle down to all gamers, core and casual.  Just like hardly anyone gets behind the wheel of a race fit Ferrari or Audi, but other Ferrari's and Audi's benefit from the engineering.  Casual is important to keep the money flowing which will allow more core to be created.  There are crossovers obviously, but in general, this is how I see it.