Eugenics and the "Designer Baby"

I know that to some extent that we now have the ability to pick and choose certain characteristics of your child, if you have enough money that is. The fact that we can do that now makes me think that it is realistic to assume that we will eventually be able to pick every last detail about your child before it is even born. Having the ability to "design" your baby kinda repulses me. It reminds me greatly of eugenics.  It connects to the questions brought up with the eugenics movement; Who gets to determine what characteristics are "undesirable"? and "Should they do so"? Who are you to say what your baby should look like? Who are we as a  society to say what a child or anyone for that matter should look like or what their personality should be?