First and foremost, I'm a family man.
I'm a husband and plan to be a father within the next few years. I want to be able to support my family without having to chase my tail for the rest of my life. I know so many people who have lived their whole lives moving from house to house because they've never been able to get out of the renting game.
If I can get 'set up' as early as possible (preparing for my future kids), then I will! If I was single and had no aspirations for family, then sure... I probably would have more stuff. But in the end, that's all it is... Stuff.
Yes, knowing that my family is well looked after makes me happy.