Do you know if this bag has a long strap? It's like a messenger bag but how come the strap is so short! For anyone who has this, do you think the bag is practical for use? What colour do you think is best? http://http://www.coach.com/content/product.aspx?product_no=9233&category_id=258 I want to get one, but wondering how come it's so $$$ at 700 USD!!!!!