“Twenty years after this all began in Mexico City, spray-paint art has an international client base, even though few people in the established art trade have noticed it. Most large cities, in North and South America and in some parts of Europe, have at least one spray-paint artist. Fort Worth has one. Dallas has one. Las Vegas supports two. Club crawlers are prime customers for the $20-$30 pieces of art. And vacationers buy the work as a keepsake of their travels.”