Great episode, but I'm not sure if it was the right play to have Dany just be all "lol I sell u drogon." I seem to recall that in the book the slaver asked her for the dragon and that she really struggled with with the decision before realizing she could just kill it with fire. In the book, I really empathized with her at the moment, but in the show it makes her just look like she's been in control the whole time. I know she spoke Valyrian and did have a degree of control the whole time, but it seemed like the weight of the decision got to her.
Am I just remembering this wrong?