4 wife = 4 times the trouble..
each wife gives you 1-2 children, a kid between the age 1-5
years old needs ALOT of care and sleep sacrifice.. Imagine
you'll have at least 4-8 kids at one go?!
When you're divorced once, you can almost declare bankrupt
giving alimony to your wife.. Imagine you get divorced 4 times...
Damn...
I think end of the day, you get more wife, but your lifespan
drops significantly.. 
why think of divorce