Personally, I would only buy another Trafic/Vivaro/Primastar if it was brand new - and then run it for five or six years before selling on (that would be less than 60,000 miles for me). It's been a fairly decent van for the most part but when something goes wrong, it does it properly. I've had periods where there has been no outlay (other than routine maintenance) for a couple of years - and I've had other periods where it's been on the back of a pickup lorry twice inside a year. If you have a contingency plan for potential downtime it's not such an issue I suppose. I use a good garage which often means a wait until they can look at it. So if it's going to be more than two or three days, I rent something and backpack it - unless it's a slack work period.