Dear god, I'm glad I don't have the OP for a husband!
You don't even know if your wife needs a laptop, but you are simply considering it because it is cheap? A tablet and a laptop are totally different devices, with totally different use cases. IF your wife wants a laptop, then the Air is a good gift. But if she doesn't need/want a laptop, then it isn't a good gift, no matter how cheap it is.
For example, I like to use my iPad to read in bed. For that, a laptop with a keyboard is no good, because the keyboard gets in the way. So if my husband got me an Air instead of an iPad, I'd be mad. (Now an Air *in addition to* an iPad -- that I'd take!
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