Generally speaking, once they reach market leader, they take (possibly shady) steps to secure their position. The easiest examples: Microsoft Word became included in the Windows software package, which not only gave it the lead, but secured it ad infinitum.
Name any time MS has done this without leveraging their OS monopoly.
Things like Office and IE became included with Windows, and so maintaining the monopoly was cake. Outside of leveraging Windows to capture new PC software markets, has Microsoft ever had a truly successful venture?
Regardless, I believe you agree with the main point that this growth is meaningless if some fundamental circumstance changes in the 10 or 15 years it would take for said growth to lead to market leadership.
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.
