Source: BoxingScene.com
Take from a recent article at BoxingScene.com about the UFC:
Company executives wouldn’t disclose what kind of audience their pay-per-view fights are generating but they did say recent numbers are at least comparable to World Wrestling Entertainment Inc. According to filings with the Securities and Exchange Commission, the WWE had four events that averaged 482,000 pay-per-view buys in the fourth financial quarter of 2006.