Absolutely! They each have their own purpose. When I'm not in school (my school is online) and I travel, the iPad goes with me. The iPad is also my lay in bed/ take it around the house internet device.
The macbook air on the other hand I will take with me when I travel during class, and I can also take it around the house to work on my schoolwork instead of being tied to my desk. My school work requires things that are not doable on the iPad (Maya, ZBrush, XCode, Unreal Engine, etc).
I can also take my laptop to my friends studio and hang out with her all day and do school work
Agreed. Each can coexist with the other. The iPad is a complimentary device