Quote from Loki:
You are absolutely right, but I had no other choice. Imagine you pay to insure your house against fire. At the end of the year you are not going to be upset if your house did not burn.
Maybe you could sue her to recover half the cost? Hehe, just kidding matey

Was a wise move and probably saved you a LOT more than $10k.
I agree with you on this issue and think you are showing a lot of wisdom here. Personally I will never marry and I do my best to avoid having any kids (successful so far, touch wood). I like my freedom and independence too much, along with financial security and low fixed costs. Think of the NYT reporter in that other story, on $120k gross, but after alimony and child support he takes home $2800 net. He's almost a middle-aged pauper due to marriage, and he earns 6 figures.
There are plenty of women out there who are cool with not getting married or having kids. In fact, it's a good sign because it means she can think independently, respects your views, and isn't a gold-digger. If you want to settle down, shack up with someone like that. If you don't, then screw around to your heart's content, have fun, and leave some other chump to marry the good-time girls and pick up the pieces. Live life for yourself, don't become a milch-cow for some fat middle-aged heifer (which is what most young hotties eventually turn into) and divorce lawyers.
www.nomarriage.com
go to the section which calculates that hiring two top-class hookers a week works out FAR cheaper per shag in the long-run than being married or having a steady girlfriend. And that doesn't factor in alimony, divorce settlement, or child support. It also is much cheaper to date around and take women to top restaurants and hotels to bang them, than to be married.
Let's face it, most guys are not strictly monogamous, and like variety from time to time. Being married stops all that, unless you want to cheat and risk getting Bobbitted, divorced, and giving herp or HPV to your partner. Best to stay single or in a chilled relationship with a solid girl who doesn't have annoying designs on kids or a white wedding.