Laptops aren't of use just for people who can't hand-write, they're simply a superior tool than pen and paper. Searching, backing up, sharing snippets, linking, all stuff that can't be handled by pen and paper without massive waste of time (or at all in many cases).
Since the discussion is about laptops in class—and thus presumably for notetaking—I'm not sure “Searching, backing up, sharing snippets, [and] linking” are apropos. These are all useful things, but wouldn't they be done after a class? And if it's after class, time isn't a factor—if those things are important to you, you could scan or retype your handwritten notes (as part of your study time, even).
Also, I would argue that for some notetaking activities, pen and paper are clearly a superior tool unless you're already an expert at the computer equivalent: diagrams or quick drawings, and mathematical equations. (I did once try to take notes in a math class for a while using LaTeX. It...did not end well; I kept have to look up how to express what I wanted.)