The MacBook Air is not really designed for business. Although it may have certain features that you can definitely use, what makes people want to purchase this is its lightweight feature. This is very easy to bring from one place to another. The MacBook Pro comes with a better processor that will also work faster which is always essential for your business. You want to make sure that you will do everything in a fast and easy manner.
The graphics of the MacBook Pro is also known to be slightly better as compared to MacBook Air.Do remember that if there is another thing that the MacBook Air may have that is not available in the MacBook Pro, it is the Touch ID. You can decide if this is something that you need or not.