From what I read the development for the BI is more or less dead.
Do you think there's still a case where the BI is more preferable to Cycles?
I'll still watch the lessons, because I guess it's good to at least have an idea of all the options.
Development is basically dead for BI, but it's still a very useful option for rendering. Particularly for Non-Photo Realistic (NPR) rendering.
You'll see a lot of people use it for cartoony/stylized renders. Also in conjunction with the Freestyle renderer as seen in this archived course.
