Should I buy a Mavic Pro or Mavic Air?

I'm currently looking to buy a high quality drone (used) and have come across both in my area for sale at $650. Both come with the full Fly More Combo kit. I have owned drones in the past and have a fair deal of experience with manual flight control. I am looking to use this drone to gain experience and to build up a portfolio of photos and short videos. Nothing for commercial use yet, but maybe one day on a small scale. Which one should I get? via /r/drones http://bit.ly/2AkVipw