My opinion
I think that the miles on a car matters a lot when considering what to buy. I just got a 2013 TDI Exec. at a dealer with 19k miles for $25k, I feel I can look forward to maybe 6 years of pretty reliable service while the mileage is under 100k, the same car with 70k is maybe 2 to 3 years from 100k miles. 100k is not a magic number, in my experience that is when, the more expensive repairs and maintenance start to kick in. With all the cars I have owned in the last 10 years it seems like 50 cents a mile is the average depreciation when it is time to sell or trade in. I would look for a lower mileage Touareg, they are out there.