Yau-Man,
  Maybe you don't really appreciate your Vanagon,from the sound of your
letter.....I also service Asian cars,and believe me-they have their own set of
problems,not limited to just poor design of many components.  I will
reiterate-maintenance is the KEY to longevity(not LUCK,as you
insinuate),whether it means having to change your coolant every 2 years,or
whatever. I have seen MANY asian headgaskets blown,yes on those very
Toyotas,Nissans,Subarus (talk about poor cylinder head
castings!),Mitsubishi,Isuzu,and so on.
  A better choice for you maybe is an Asian(read:boring)minivan-but they will
never build a WONDERFUL vehicle like our Vanagons.How many Asian vans have
such part exchangeability as a Vanagon,either?
  Of course,as always,this is only IMHO. Everyone enjoy!
Karl