Agree totally. I have a 2.0 TDi PD 170. DMF was replaced at around 130,000 miles, cost circa £1000. Get the clutch done at the same time - it's parts only whilst the 'box is out and adds around ninety quid to the bill.
I'd never swap a solid FW in place of a DMF. The DMF is there to protect the whole drivetrain, not just to make things smoother and more comfortable. There are stories of broken crankshafts and worse as a result of a solid FW fitments. The DMF allows the engine a degree of 'independence' from the rest of the transmission, it's not just a case of suppressing rotational vibration downstream of the DMF.
Nice car by the way, far better built than my Passat and the PD 150 is very very tunable.