Thanks for all the responses. I really do want an Apple iPad Air, mostly for use by my wife who is a greater tech noob than me. As an aside, we recently bought a couple of pay-as-you-go Tracfones -- we rarely make calls -- and they had Smartphones (Huawei Gory, H868C). They're OK, but I cannot get around the Android OS and apps very well, especially the browser -- I feel like I'm trapped (stuck) in an old Zork-like game; will try and break out tonight. And so, so many ads to sell you something! Anyway, we're looking forward to buying an iPad Air. I am able to use the local military PX and plan to buy it there, although if I find a problem, it will be unlikely that they will be able to swap it out as they do not stock the quantity that a large retailer might carry. Buying at an Apple store would be the safest route, but my purchase at the PX would be tax-free; $80 is $80 (est. tax on the 128 GB Wi-Fi + Cell model). I would not mind driving down to Austin to one of the Apple stores there if I knew they would (at least consider) making an on-the-spot trade/replacement if I did have a bonified problem with my purchase (not my past experience with an iPod purchase a few years ago). I appreciate all the advice and your perspectives/first-hand reports. PS - (later tonight) -- I stopped by the PX and they had one Wi-Fi + Cell. The PX lady (not an Apple employee) said it was an AT&T version asked what carrier I had, and I replied "none" yet. I said that I thought you could swap out the SIM for a different carrier, and she said that a couple of carriers have "software" incompatibilities. I said 'thanks' and left. From my reading here, the iPad Air does not have carrier compatibility issues.... Well, paying the tax at a real Apple store may be worth it simply for the expertise.