That is high mileage for the year.
However, VW can be reliable, and long lasting.
Was this a commercial vehicle, making deliveries everyday? If so, then it will have racked up mileage quickly, but could/should have been treated well, with regular servicing.
If the vehicle is in good condition, it tells you that the owners have cared for it.
It’s a good price, and most people do low mileage in campers, and so if you have it for a few years you will return it to average mileage for the age.
I would be tempted to get a newer, higher mileage vehicle (rather than older lower mileage) if it’s be well cared for.