Normally I go for the basic model, but earlier this year I was splurging a bit and as I recall the Air had a much better processor than the basic one and more memory, and the better display. It kind of made sense to me. I got a refurb, as usual.
Maybe a new ATV this year after all?
Of course, I bit the bullet and upgraded my final Mini a couple months ago, but I kind of doubt anything new there since they just refreshed it, as minor as it was.