In Baldur's Gate - especially the second one and in all the Infinity games for that matter, there were quite a lot of lines that were voiced over. Plus the voice actors were names like Jennifer Hale, Kevin Michael Richardson, Gray DeLisle, Tony jay, etc. Dunno what their budget was and I always like to think, that the main reason for the infinity games not to get more voice work was the size (bad compression mostly) of the games back then.
Now, if Divinity OS2, doesn't get voice overs for the main characters at least it will be quite sad.
