The NUC is portable in a sense, but the Pi is at the apex of portability. It weighs basically nothing and takes up very little space. Perhaps most people don’t

The NUC is portable in a sense, but the Pi is at the apex of portability. It weighs basically nothing and takes up very little space. Perhaps most people don’t need to transport their Pi like me. Even so, the footprint definitely matters. The size and weight of the Pi means that it can be installed in many odd places. I have mine on a bookshelf.