You probably hit the nail on the head?I obviously didn't realise how big Europe is
First couple of times we were over we were on the Rhine and Mosel.
We were seeing a number of brit vans about.
We now tend to wander to less well known areas and the last time seen just two in three weeks till we were back to near the port.
I don't particularly think it's less people traveling abroad it's just there is a lot of space.
Try getting a van on the Newcastle ferry at short notice (short notice is anything less than six months)