Cohabitation Conundrum?

I've talked a lot about this with friends of mine recently, and quite a few friends at that. Specifically about 2 close friends of mine that JUST got married. I mean that very literally, as I was ripping up the dance floor at the reception about 2 to 3 hours ago.

These friends are a Christian couple. Looking to serve the LORD and have Jesus at the center of their lives and the basis for their relationship. When talking to other close friends of mine about it (I lived with the groom for the past 9 months), I had many question the fact that they were not living together. I got plenty of "well, they don't want to try it out and see if it works?" or "wait, they haven't slept together yet and they're getting married?!" etc. As we all know, sex before marriage is not okay with God. I would expect nothing less of my newly wed friends and they handled the situation perfectly.

Even so, I thought it'd be a good idea to spill some facts about this subject, considering most arguments against Christian views are "there are no facts." Here's some SECULAR facts:

"65 percent of altar-bound men and women live together before getting married."
--Bride's Magazine

"Research indicates that people who live together prior to getting married are more likely to have marriages that end in divorce."
--The Boston Herald

"A recent study on cohabitation concluded that after five to seven years, only 21 percent of unmarried couples were still living together."
--The Boston Herald

Now, those stats speak for themselves and I'm honestly not trying to get on a soapbox and jam my beliefs down your throat. But there IS something to the Christian view on this topic, and sure, there are probably a few special cases, but not living together before you're married is the best route to go. I'm just tired of it being questioned. I guess it's not normal for this day and age, but it's certainly not stupid by any means.

Hebrews 13:4