I find it to be a crazy thought that I would willingly (and permanently) give up a big, high resolution monitor and practically endless storage space for some small crappy device with a 3 inch screen.

No, not until I can have high resolution graphics projected directly onto my retina though a device that is no bigger than a pair of designer sun shades, and it lets me display graphics so good that they are indistinguishable from those generated by a high powered device that generates enough heat to fry my balls off.