It wasn't my math, I didn't do it. But this guy's been banging wrenches on diesels for over 20 years and driving them even longer. He likes taking really good care of his cars and they decided that for their family's driving needs, doing exactly what VW says it wants done to the car (now and moving forward) doesn't make sense for them- even getting VW parts at a discount and doing his own work.
I wasn't involved in looking things up for him, I just gave him a PO to the VW shop and he called them on his own. He was curious about what VW would do for a transmission service and what kind of work he'd be looking at on it in the future. A week later he traded the thing in.
He dropped it like it was hot.