I won't really argue much. I can get by with just my iPhone. I think a MacBook (don't have an Air) is better for a lot of things even if the iPad is better for media on a plane. The weight difference is minimal if you count the keyboard. I don't draw so don't need an iPad for that. A Kindle weighs nothing so I can always bring that for reading.

Not sure I'll buy another iPad given my current lifestyle.