Laptops can be limiting; specifically, to original thought. Whenever I have asked questions on a yet to-be covered topic in a classroom, students with laptop look it up on the internet while the rest have a really hard time exploring options based on what they know. We seemed to have moved from think-n-build society to search-n-use society. While search-n-use is good, we need think-n-build to enable search-n-use.
I think discussion is more important to learning. And, classroom-based courses are better equipped to facilitate live discussions. That said, I think there is a sweet spot that allows flexible schedule, costs less, and enables live in-the-moment discussion. It is only a matter of time until we hit it.