Every special group develops its own distinctive culture, and we in the interactive entertainment biz have been establishing our culture for some years now. Consider the stability of other artistic and entertainment media. The basic technology and audience for literature has now been stable for five hundred years. Yes, we've seen improvements over that time, such as better illustrations, photographs, and cheap paperback books, but these are secondary considerations. The basic milieu has not changed.
Music shows much the same pattern.
The fundamental technologies of music have not changed in two hundred years. Yes, we've seen continuing improvements, but there's nothing today that Mozart couldn't Handl. Movies are more recent, but again we see a culture that is basically stable. The fundamental technology for movies is a hundred years old, and the last major changes were talkies 60 years ago and color 50 years ago. Since then, the changes have been embellishments.