Haha, basically same reasoning for me.
iPad 1: Will this catch on? Will it even be worth it, considering I have a pretty lightweight laptop?
iPad 2: What?? No retina display?!
If I'm going to use a device primarily for web browsing, reading ebooks, and some gaming - it better have a fantastic screen for me to look at instead of just using my laptop.
Pretty excited about having the new iPad: I haven't needed a laptop beyond word processing and music production for a while, and I spent 90% of my computer use simply reading articles, communicating on forums, etc.
I'm wondering if the iPad will be able to replace paper, and be the only thing I bring to class. I plan on getting a nice stylus and note-taking app to at least attempt, because it seems like I could easily store/organize my notes with this thing.
Also, that Infinity Blade Dungeons debut looked awesome! Looks like a Diablo that utilizes touch-controls in a unique way. I haven't done any significant mobile gaming with my iPhone or since a Gameboy, but I do remember seeing someone using their iPad on a flight to Hawaii and I was pretty jealous.
Anyway, the screen is what sold me - it could have been the only upgrade, and I might have still bought it.
Also, I didn't buy 4G because I already have an iPhone with 3G that is basically only used for Maps and quick references, and if I really want I can always jailbreak and tether. My laptop doesn't have mobile internet - so why should my iPad? Do people really walk around in non-WiFi spots with their iPads out, actually utilizing that mobile internet?