Hi mothy54,
Not really a clearcut answer to that one :dry:
It might depend on how long you intend to keep the van. Do you think the newer, more expensive van will keep its extra 'value' in say, 5 years? It could also be that the older van is of a better build quality although I am not familiar with either in detail. Are both layouts equally to your requirements? Does the older van look that much more dated than the newer one?
I think the mileage for 2007 is not exceptionally low so not sure that should be a big factor.
There are just so many variables its not just comparing one year with another.
Just my 2p worth