I'm looking at purchasing either a Macbook Pro or Macbook Air for my wife. Uses : Running a small business from home. Tracking emails, using adobe photoshop for small designs, hooking up a printer & label maker to process orders to ship off, etc. Choices Apple - MacBook Pro with Retina display - 13.3" Display - 8GB Memory - 128GB Flash Storage - Silver - $1149.99 Apple - MacBook Air® (Latest Model) - 13.3" Display - Intel Core i5 - 8GB Memory - 128GB Flash Storage - Silver - $874.99 Now both laptops have the same CPU, size of RAM, and storage. However, the Macbook Pro does have a retina screen and IRIS gpu. Which one do I purchase? Does the extra $300 really make a difference for the Pro label and Retina screen, or am I overlooking something? Thank you.