How is Okami more niche than Zelda? And as for advertising, how much advertising did Uncharted get when compared to, say, Metroid Prime 3?
If you make enough rules as you go along to cut out counterexamples, you can prove basically any thesis. It all depends on what you mean with big game, with enough sales etc.
How many games of great quality, strongly advertised, not of a niche genre did ever not sell on any console?







