In fact, the Falcon "MicroBox" is mentioned as part of the PlayStation 2's patent (US D450,318 S), which has a series of seven images describing the "ornamental design" that Sony purchased from Atari.

Sony hadn’t revealed PS2 sales numbers since 2011 ... console release (complete with packaging that hearkens back to the ...

Sony and PlayStation had seen huge success with the release of the original PlayStation. To keep that success going, the PlayStation 2 was the evolution of everything that worked on the first console.