We adopted a girl after having three boys.
It is tricky, as others have mentioned...did we adopt our child because we wanted a girl, or because we wanted to adopt a child? The honest truth is we wanted another child, and had always planned on adopting...but when you have three boys, you want to adopt, and one of the perks of (some kinds of) adoption is you can choose a girl? Well, to us it seemed like the obvious choice.
Adoption is tougher than you might imagine (for some, not all, but the thing is you never know). You do need to be careful about how you approach and think about it. But I do think, if you walk into it with your eyes and mind open, you can do right by your future child and by your family.
One thing to consider is that, in most countries, girls are more wanted than boys (in adoption). Korea is the program we know best, and there families can wait 3, 4, 5 times longer for the referral of a girl than the referral of a boy. "Families wait for girls, but boys wait for families" is the saying.
If you wanted to adopt a girl, why not look into programs in countries where girls are less wanted and where orphanages have mostly girls? India and China come to mind. China is a bit of a mess right now, adoption program-wise, but in a couple of years you never know. India has different programs and requirements based on what part of India you're adopting from, but with some diligence you may be able to find a program that's right for you.
We adopted our daughter from South Korea. I won't ever regret adopting her, but I do sometimes regret not adopting from a country where girls were more in need. I briefly inquired about India at the start of our adoption process, heard from one agency that "oh, you can't do India adoption," and thought that was it. Now I know we probably could have adopted a child from India...and when I read articles like this:
I wish I would have pursued my first interest in adoption more thoroughly.
International adoption is a wonderful thing, though there are a lot of losses (for everyone involved) and often many drawbacks to the process. It's my opinion that, for some families, the ability to choose whether they'll parent a son or parent a daughter is one of the unusual perks. You just need to make sure you're comfortable choosing a gender given the program/country you select.