Hi, I'm on to my second Ducato, sold the first after 5 years with over 100,000 miles, even then it had no rust and in all that time all I had to replace was the starter motor and the windscreen wiper motor (my fault). The price of the new one was incredible, it was so low I was able to get loads of extras (metalic paint, alloys, pasengers air bag, bulk head) and it was still a saving of a few grand from the equivelent Transit. My mate has a new Traffic, it's been off the road for about 3 months with gearbox problems.
My van is kitted out with a Diesel Max, freshwater tank etc. and it still handles better than my car.
Hope this helps.
David Glassey