As Apple fans, we're like magpies. Shiny, shiny!
But seriously, I never buy the 'next generation' iDevice to what I already have - the exception was the iPhone 4, which blew me away with the screen.
I think if you have money, what the hey, who cares? But for me, and I suspect the most of us iPad 1 owners here, the iPad 2 isn't a huge leap forward from the original, and I'd rather save my pennies for a much substantial upgrade.
The truth for me is that wifi-only and 32gb is literally all I need - I don't need 3G (at all) or a megabyte more memory, so why go through the hassle of selling a perfectly good device for almost half the price I paid, just for something thinner (which doesn't even matter as I case all my Apple devices) and a teeny bit faster (I'd never use the cameras)? I'm pretty sure the iPad 3 will blow everyone away with an even faster processor to pump out a beautiful higher res screen, a gig of RAM, and a host of other features. That's the iPad I'll be green with envy over. So it's a big 'meh' to the iPad 2 from me right now.
Just being honest people. I really think buying a new tablet (or computer, or phone, or whatever) every year for 2-3 new features is a little obsessive.