The owner of Christie's Bookstore is looking into the sales of its Health & Fitness magazine section. She finds that her equilibrium is at 1,000 magazines per month sold at an average price of $4.25 per magazine. When the price of these Health & Fitness magazines rose to $4.95 each, the quantity sold fell to 900 magazines per month, while the quantity supplied to her increased to 1,250 a month.

Give examples of three real and specific changes could affect the elasticity of demand for Health & Fitness magazines.