I think because its been pretty much well known for a long time now that this iPad would feature a 'retina' display, for some people this takes away the shine of it being a huge upgrade, which couldn't be further from the truth.
All these people saying '''meh iPad 2 screen is fine, not upgrading'' etc, id like to see if your opinion is the same when you actually see this new ipad screen in person..
I cant think of a possible bigger upgrade than the ridiculous spec screen that this new iPad has, after all, the iPad is just that, a screen. With this new display, everything you do on your iPad instantly becomes more enjoyable.