I have been thinking alot about switching to a van -
pros
easier to load the bike (you can use a long ramp)
bike is out of sight
bike is dry
loads of space for gear and tools
easier to drive than a car + trailer
cons
insurance
mpg
vision at junctions (although you can usually take a different line)
space to park the van
The pictures I have seen with bikes loaded into people carriers look very cramped, but I have not seen one in the flesh.
I guess it comes down to how many trackdays and trip for servicing that you do, compared with normal car type trips