I would disagree with this.  I'm a huge adventure game fan.  I grew up with the Sierra adventure games of the 80s and early 90s.  Those games just aren't made anymore, and not even in the indie scene.  Yes, they have adventure games in the indie scene, but they've been streamlined.  Sierra games are now known for moon logic, red herrings, and dead ends, which are considered terrible practice.  But I love moon logic, red herrings, and dead ends in my games.

The problem is, as more people started playing computer games, and it became more popular, companies would cater towards them.  Why wouldn't they?  But, now I became marginalized in a hobby where I once was the main audience.  So my tastes also became marginalized.