When the PS3 launched in 2006, the SIXAXIS controller did not have rumble support. It had motion control, but like I just said, no rumble. And I found myself playing more Xbox 360 games.
It wasn't because Xbox 360 games were better. No, it was because Xbox 360 games could be played on a controller with feedback. Even developers making games for the PS3 (Hideo Kojima, for example) lamented the absence of rumble!