Your facts are mixed up a bit. Pride isn't on PPV in Japan, it's on NETWORK television in Japan on FujiTV which is one of the two biggest networks in Japan (Comparable to NBC, ABC or CBS in the states). Next to K-1 (except perhaps Baseball and Soccer?), MMA and especially Pride is the next biggest sporting event on Japanese television. What the UFC has right now with Spike doesn't even begin to compare with what Pride had over there. As of right now though Pride has lost its spot due to the rumors of them dealing with the Yakuza, so I agree that the UFC can still win in the long run.
And the UFC doesn't get 3 million viewers, they get a 3.0 or so share, which is closer to 1.5-1.8 million people (don't quote me on that number, but it aint 3 million viewers).