A good size for shipment.

It is the perfect size order for someone who is not doing a ton of printing and came very well packed.

A nice size for manageable storage.

good quality paper , good size box

Great size

For those professions I believe HP makes a legal size as well

On the rare occasions we print on legal it is cut to size by the designjet cutter from roll paper stock, of course law offices would prefer the legal size but design firms seem to prefer tabloid sheets.