I'm not promoting my other half at all, we're getting married next year and because she's into photography, she has lots of friends who are also into photography too. So we did the cheap option, she did a friends wedding, he's doing ours, all for free, that's £1000 saved
I did the same. I shot most of my sisters, she and her husband shot mine along with some of my friends. I got great results that I am very happy with, for free. I shot another friends civil wedding and was a guest at their main - they far preferred the photos I took at the civil compared to their expensive tog at the main.
All depends what you want as well. Portrait photography doesn't do anything for me and I didn't feel like the need for hundreds of wedding photos when i only need a few around the house. For me capturing the memories was the most important thing so even peoples photos taken with their point and shoots works well enough for me.