When you are holding the device and just looking at it, maybe trying a few apps - whether at the store, or trying out your friends - the display is the only constant that'll matter and it's the only thing that you can definitively and objectively compare.
And yes - I do agree with you - Apple and their bundles of cash have likely hamstrung world-wide inventories of this display for a minimum of 60, if not 90 days. No other electronics vendor will be shipping the 2048x1536 form factor in large volumes until June/July at the very earliest.
Also, Apple says they'll have enough screen for 12-15 million devices this quarter, and claim there's no supply issue at all. [1]
That aside, shortage isn't bad for in-demand items. It just causes more hype. A year after the Wii shortage, they were still one of the hotest electronic devices you could get your hands on.
[1] http://uk.reuters.com/article/2012/03/13/us-apple-idUKBRE82C...
Anyways, I was attempting to upvote your comment because I've noticed the same. I'm sure it will change once they see the display in person, and then see an iPad 1 or 2 again. I stare at pixels all day and it was an incredible upgrade to go from a standard Dell to a MBP with a high res display a few years back. Looking forward to this next step as well.