Oh... my... god... Lock your doors and windows Steerpike.

In a way I agree with you yet I can't help but want to push you down a flight of stairs.
Here's the thing, I feel that anyone who is truly devoted to magic whether they're in their room practicing magic or out performing. You mention the stick art, well what about the fantastic painters who paint brilliant paintings but do it in the privacy of their room. The artists that don't sell their art in a gallery. The photographers who create beautiful images but only for themselves. Or the filmmakers who are not making a living off of their art.
You're being much to general. I've always thought magic is an art, and those who practice it with conviction and passion should be considered the artist.
If you want to debate whether magic is an art or not debate that. Don't make those who have been taught that magic is an art and they are the artists feel like ****.
Mitch