Like most, I bought my TDI JSW for performance, efficiency, and environmental friendliness. I balanced those three things against the generally higher cost of diesel and the generally higher repair costs of VWs (anecdotal, this was my first).
I can't understand the people who are willing to ingore environmental unfriendliness as long as they get to keep performance and efficiency. That seems deliberately evil, anyone who knowingly bought a car like that would be considered a dick (sorry, I'm not trying to be inflamatory or personal)
I can't understand the people who are willing to detune and live with poor peformance and poor efficiency as long as their emissions get back to the required level. Anyone who knowingly bought a car like that would be considered an idiot.
We bought TDIs for the whole package.
I'm pretty sure VW doesn't have a miracle software fix hidden up their sleeve. I don't know how VWAG will be able to afford it, but the only way I'm not going to feel cheated is if they buyback at essentially original purchase price minus ~$100/month. Net, they rented to me for $1200 / year.
Of course then I'll have to go test drive the Prius V again, and barf. Or the CMax (didn't test drive that one last time). There's a dearth of good alternatives to "JSW with promised power, efficiency, and environmental friendliness" unless you can affort a Tesla.