Oh, I'm sure it's a ripoff compared to PCA. But it fits by schedule. And I'm thinking I'll get a lot more out of the Sept DE if I know the track a little. Or at least that's how I'm rationalizing it. I know I got a lot more out of my second DE at SP than my first.
I'm definitely curious to see what extra benefit you get at Carguys for the extra cost. Maybe the track will be nearly empty save for the idiots like me who pay $675 for a DE.