I gladly welcome a new MBA even after just paying a full price $1799 for a brand new rev C.
Also, I did return several, one of which was DOA - not a bad display.
Oddly enough, my experiments have left my MBA without lines??? I don't know why, and I couldn't duplicate it. Mine were very weird, and they are, as far as I can tell, completely gone!
I do not think the new MBAs were in really fast, but rather very normal time. The rev Bs took forever. I don't believe Apple is fixing the displays. It all comes down to if you know they are there and if they bother you. For the untrained eye, or someone who doesn't get real close to the display, or a minor afflicted display, the MBA's display is really very nice. It's only probably ten percent of buyers who even know the lines exist. It really looks like we are all being picky, unless it's a badly affected unit.
The 24" LED ACD has been refurbished for a LONNNGGGGG time. It just went down in price by another $100 a month or so ago though. Just have to select displays in the refurbished section to find them. Also, the 30" ACD dropped to $1299!!! Although, I don't care how much smaller it is, the 24" LED backlit ACD is the perfect companion for the MBA!
Finally, I think that maybe we will see another rev C MBA that will be the "high-end" version. The current high-end will become the low end. The new high-end will come with the same CPU, better GPU, 256 GB SSD, and 4 GB RAM. Unfortunately though, it will probably come close to the $2200 $2500 price range! Or, it could be a true rev D, and we may see other additions... 3G, glass trackpad, black aluminum, OLED display, and etc etc etc!!! And yes, I really believe EITHER could happen this Summer/Fall! I believe we do see "another" MBA BEFORE ARRANDALE!