Formula companies sell formula, not breastmilk. I realize that not every mother is going to e-mail me, or get involved in a support group, or contact a Lactation Consultant, about which breast pump to choose. Some moms just want to do it themselves, and I want to help gently guide that choice. Also, I don't want to sell a mother a breast pump if she doesn't need one. I am up front about that.
Breast pumps are great for maintaining milk supply during separation of mother and baby.