I lost my aunt to lung cancer a couple years ago, and it was not pretty. In all honesty, I would not wish death by cancer on my worst enemy.
The original MacOS and Lisa/Macintosh was the first commercial implementation of a grand user interface experiment at Xerox PARC; It's been copied by just about everyone since then. (Windows, OS/2, AmigaOS, the many iterations on X windows, etc.) Several other innovations are around primarily due to Apple. Desktop publishing, image manipulation, and WYSIWYG from screen to print are the main ones I credit to apple for bringing to the mainstream. Apple's hardware is generally well designed (if a bit of a brat to actually work on) and tends to last longer then it's PC counterparts. That makes it worth the price markup.
That having been said, I don't agree with some of Apple's business practices and some of their behaviors, so I'm not what I would consider a fanboi.
As to Mr. Job himself? Certainly a creative genius, but he did have an air of smug arrogance about him at times. (which, if my remembrance of history is correct, is pretty on par with most creative geniuses.)