I disagree, what sales games is promotion, advertising and hype.
Sadly for both Wonderful 101 and Puppeteer, while the fanbases tried to grass root hype the games, the main companies didn't promote and released in wake of the main stream monster that is GTAV they were sent out to die without even being given guns for their bullets.
You really just have to look at the success of games like Dishonored, Heavy Rain, The Walking Dead or Just Dance, most these spread due to word of mouth or hype via media hard ons for their more unique elements. The same could happen for Wonderful 101 or Puppeteer but sadly the audience isn't probably strong enough to push that.