I was looking at both, many dealers in the bay area charge over sticker for TACO TRD PRO, I refuse to pay MSRP let alone above. They helped me make my decision, but I continue to be pleased by the truck.
Makes sense that they have to size that for typical use, more than one passenger, some load. We air down/up for the trails but very few ever adjust their tires for other reasons, trips, extra pasengers, etc.