By "everyone and their moms" it means casual buyers. People who don't play games often or ever. This explains the surplus sales of the Wii and DS and games like Brain Age and Nintendogs. The reason PS consoles sell so well is because the core console market is solidified (about 170-180 million buyers). PS and Xbox substitute eachothers sales. What Nintendo has been doing since the Wii is totally seperate. It's not rocket science.
What’s a casual buyer?
I describe myself as a little dose of toxic masculinity.