Personally, I find it a little offensive that a fairly large corporation is being a private shill for Schwarzenegger. Isn't it obvious that their base product is going to sell better than the others? And they equate Davis with what's probably an unadvertised, traditionally low-selling product. And they're advertising the hell out of those Grilled Stuft Burrito things.
A more accurate test would probably be a set of equally-priced low-selling items with similar ingredients. But they thought they'd put an external weight on it in favor of Ahnult and specifically against Davis.
If I didn't already not go to Taco Bell, I'd probably stop going just for this.
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Bitt Faulk