I've been married for 18 years, feels like 40..lol
Seriously though for me, my child is everything. There's really not much meaning to accumulate wealth just because you can. And there's nothing in the world that replaces the love of a child. Having more than you can afford, well that's another story.
I grew up in a single mom environment, as she raised 3 kids. It was hell on her, she when bankrupt at least once and had a breakdown at least once, but she lived for us and we knew it and appreciated it. She also always worked one full time and a part-time job. Funny thing is I can count on one hand the amount of time she complained about her situation. Would she have changed places for no kids and no money worries, I honestly don't think she would have.