I think line drawing is gaining respect again. Seems like everything tends to go in cycles. Portraiture, illustration (a dirty work for art snobs), and anything else you can think of goes in and out of favor in the hoytie toytie high falutin ladie da world of artsy fartsy. It's only recently that automotive fine art has achieved any respect to speak of. While autos, trains, planes, motorcycles, all have been subject matter for a long time it was often not considered worthy among the elites. Thankfully that's changed.
Anyway, what media do people use and why? Pencil, oil, pastel, charcoal?