Yes, it is very cool in particular to do that on an iPad. But the entire feel is lost. If one looks at the whole US at once, most of the details are lost. Then as soon as you zoom in it is difficult to appreciate the spatial relationship between states as one "journeys" across the country.
That reminds me, I also need to buy a globe. Or is that to be replaced with an animated 3d monitor representation as well?
When a teacher showed our class a flat map and tried to explain how this Mercator projection wasn't truly accurate because the world is a sphere, I remember a bunch of students being confused. I was more fortunate. I imagined the globe back home and got it right away.
I love digital maps for the efficiency in performing the task of getting from point A to point B, and I love globes for helping to visualize the physical world as a whole.