The article explores the economics of the profession. I found the comments more interesting than the article. The writer's approach is unsophisticated, her discomfort with discussing sex, apparent.

This much is true: coitus is an art and much pleasure awaits the student who excels at the lessons.

For anyone interested in the economics of the profession there is a download link to the paper, "A Theory of Prostitution," (pdf) by economists Lena Edlund and Evelyn Korn. Look for it in the supply side section.