I didn't camp out on iDay 1.0, I just waited in line a few hours. Overall, I had a really good time and met new people, talked for a while, etc.
I don't plan on camping out, and I never have for an electronic or any other item. Depending on the day of release, I might go early just because it was a great time last time.
I bet Apple will do pretty well in stocking the stores as they did with iPhone 1.0, so I'm not too worried. I live near two Apple stores and a few AT&T stores, so I should be covered.
Edit: Just released my post number is 942. 9:42. Creepy? I think so.