The same can probably be said about a number of other popular platforms, including Microsoft Windows Mobile, Palm Garnet OS (on the Palm Centro), Symbian OS (found on a number of Nokia smartphones, and Linux.
People who prefer Windows Mobile phones may not be as interested in a Google Android smartphone or one with a Symbian OS.
Running on Symbian OS 9.2 S60, the Nokia N95 was a powerhouse of a phone.