[pbhjpbhj]

>highly skeptical that an ipad + pencil [...] //

The people using paper probably also have the iPad, so it's probably whether the pencil used is more eco-friendly than the extra disposable plastic pens (which it might be)? Then you'd need to look at product lifetime, which is probably more limited by time-passed for Apple users and products than by actual hours of use??

I think these things are always more complex to analyse than it first appears.