Your load can't tell how old the van carrying it is
Boxes, a wardrobe or a bag of compost can't tell whether you are carrying them in a three-year-old or a twelve-year-old vehicle. What matters is the cargo area and the payload — and an older van has practically the same as a newer model of the same size.
That is exactly why, for a one-off trip, it makes sense to look mainly at the price. The money you save is just as real at the end of the day as the money you would have spent on a newer vehicle with the same result.
When an older vehicle is the obvious choice
Taking away rubble, soil or building materials. With a load that creates dust and rubs against the walls, there's no point worrying about driving a freshly serviced vehicle.
A short trip around town. When you're driving ten kilometres home from a DIY store, neither comfort nor fuel consumption has a chance to make a difference.
A move that takes one afternoon. Loading and unloading take longer than the drive — and there the vans don't differ at all.
When it's better to pay a little extra
A long route. Over several hundred kilometres, seat comfort and soundproofing make a noticeable difference and fatigue sets in sooner.
Driving in winter and in the dark. Newer vehicles tend to have better lights and more confident handling in the wet, which is no small thing on a mountain road.