Quite frankly, not everyone has a nice big shop with wide open spaces (like Slodat!). Many of us have tiny shops where everything has to be on wheels (like me) in order to make everything fit or work. My Vidmar is over 5' tall, with 5 large drawers and a big top cabinet and my shop does not have enough room for a pallet jack to maneuver easily, even if I had one. My Vidmar is on heavy duty casters that allows me to move it wherever it needs to be and when it is sited where I want it, I raise it off the casters onto blocks. If I need to move it again, it's a simple matter to do so.
My mill and my lathe are on Carrymaster casters that have two to four times the weight capacity of what they are carrying. They are rock solid until they need to move, and then they can move. The Vidmar is on heavy duty 4" casters that can handle the weight. My three other large tool chests are also on wheels.
I'm an old man working alone in a smallish shop and sometimes things have to move so I can work on biggish stuff. I would imagine that most hobby guys do not have huge shops. We live in garages or basements. Wheels help us manage.