I do not really hold that marriage is a very good thing anymore. Nor do i see it to be in accord or contrary to holiness. Even though the Rambam held the idea of  concubine פילגש was only for kings, most rishonim disagree. 

And if you want to see this in the Old Testament itself, see Chronicles chapter 2 verse 46 concerning Caleb ben Yefuna. And  Caleb ben Yefuna was not a king, and yet had a few concubines. [And he was righteous as it says in the Book of  Numbers after he returned with Joshua--he went totally with God. וימלא אחרי השם ] So have girl friends and even having children with them does not reduce ones righteousness

Marriage nowadays is like being in an airplane that is losing power, and you are handed a parachute. The flight attendant that hands you the chute tells you that it has a 50/50 percent chance of opening.