I don't think you'd find an Air ideal for CC apps - mostly because of the screen. Fully loaded with a 1.7GHz processor, 512GB drive, 8GB of RAM and you're looking at $1849 before tax.
It weighs just half a pound less than the top of the line 13" i5 Retina MBP, which is also $1849 with the same amount of RAM and same SSD, similar Geekbench scores to the Air and a MUCH better screen. And you can upgrade the RAM to 16GB with the MBP for another $200, which you cannot do with the Air.
There is a lovely 13" in the refurb store right now for a cool $400 off the full price:
Refurbished 13.3-inch MacBook Pro 2.6GHz Dual-core Intel i5 with Retina Display - Apple Store (Canada)
The i7 is less than 5% faster than the i5; for most of us, the 1TB flash drive and the 16GB of RAM are the more useful upgrades.
Having owned a Retina since last summer, I'd never willingly go back to one of the older displays. Of course, this is making me want a better monitor for the Mac Pro too...