Something he is very right about is not looking at sales in a one-dimensional manner. I see people looking at the box office of the Transformers films, and whine about how this shows the mainstream is stupid, when a simple look beyond the total would show the movies are largely front-loaded. Add general inflation, ticket inflation (especially with 3D), and increased population, and we see that movies aren't as attended as much as they used to be. And with budgets and marketing costs, they have to rely on tertiary revenue just to keep profits at a decent level.
This also applies to games though, which is why he points out that the great games have evergreen sales, regardless of the sales total.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs