So if you compare ppv buyrates and ratings, let's see:
PPV sources
A Demand for a Comprehensive PPV Buyrate List
WWE Pay-Per-View Buys (1993-2015) - Wrestlenomics
Austin
RR 351k, No way out 188k, WM 14 836k, Unforgiven 309k, Over the Edge 211k, King of the Ring 310k, Fully Loaded 329k...