[InspiredIdiot]

I don't know why you would assume that. If the things most people value like social acceptance and popularity don't value intelligence why would the parents select for it even if they could? It will simply become a cheaper route to everyone being a supermodel than plastic surgery.

[fairity]

Well, there's no reason to believe attractiveness and intelligence are mutually exclusive. Are you saying parents would choose to forego intelligent traits in their children when all else is equal?

[InspiredIdiot]

Agreed. It could easily not be an either/or thing. If you look at how services are charged today they always try to extract maximal value. So I doubt that it will just be "while you're engineering my child could you please make them better in every way for no additional cost to me?" The provider will have a premium package even if it costs them more to _not_ do it for market segmentation purposes. Look at Intel disabling parts of otherwise functional CPUs for an example. Given that, if people have the choice I think they will value looks more and be more willing to pay for those so unless intelligence is actually cheaper they won't choose it.