Adoption is a $30-$60K process to embark upon and often takes years, featuring many potential roadblocks - the recent Russian decision for example shuts the door to many couples who've been waiting for months or years on waiting lists. Domestic adoption is a complex process also.
Assuming our upcoming donor cycle fails, adoption will be our final alternative. We are in our mid-40s now.
It varies a lot based on how picky you are with your choice of child. That said, a quick and easy adoption of the most available child is more likely to be followed by a life time of having a less healthy child, for various kinds of health issue.
That said, I think it is good communitarian practice to be involved in at least one adoption, as a parent or sibling. There are so many abandoned or abused kids who deserve better than what they have.
Assuming our upcoming donor cycle fails, adoption will be our final alternative. We are in our mid-40s now.