Why is "Nintendo" used as a qualifier for games?

[Talal]

the_dengle said:

mZuzek said:
Because almost every good game you get on the Wii U comes from Nintendo. When you get a PlayStation or Xbox One, you're playing games from several different developers, which all have different names, stories and characters, and while so many of these experiences are the same, people will still think they have great variety of genres there.

Then it is about the publisher. As I said, I feel this is a nonsensical qualifier, like grouping books or movies by their publisher/producer. No one does this.

A lot of people do that. "I hate Pixar movies" "I love Disney movies" etc. Nintendo games do have a certain style. You can almost always tell if a game is made by Nintendo.