I can remember the 16-page _Newsweek_ ad quite vividly --- the Mac was something special, and even its spiritual successor, the NeXT Cube did not reach the level of artistic flair which the Mac hit as a quick perusal of:
It was an interesting design, well-suited to the target audience and presents quite well in person (a co-worker bought two, one donated, the other for his personal use when hiking).
When people think of a Mac as "art", we call that an occupational hazard.
So if you call a Mac art, you might as well call any computer art.