And then there's me. I've been the breadwinner for about 4 years now. Before that, I was making more money than DH (I finished college, via military scholarship, and he didn't), and I had the job with benefits, like the one that let me rack up medical bills suitable for buying real-estate and only paying $50 deductable. I took about 5 months maternity leave with each kid, and didn't mind staying home, but I knew it was temporary.
If it weren't for preschool bills, we'd be in pretty good shape, but there is a light at the end of the tunnel on that. WAY far at the end, since it's another year before the youngest is in kindergarten, right about the time local authorities are talking about making free public preschools.
Actually, the best thing DH does SAHD-wise is cook. The kids practically don't know what junk food is. Of course, they don't really appreciate that.