They can. Seems almost futile for us to purchase books from our own fundraiser though.
By the way, for those that didn't go read the post on RPL, DH and I are going to be starting the licensing process to become foster parents. That's why we're wanting to get a collection going. My goal is to have at least few books from several genres for all age groups so that any child coming in can hopefully find something they're interested in. Once we find out what books they like, we can focus on flushing out that area. In general, we like to have a couple books in the house at all times that we haven't read and would interest us so that we always have choices. I'd like for the same to be true for any children that come into the house.
Oh, and the fact that we're planning to foster is NOT to be mentioned on facebook just yet.