Why do you let it bother you? Most of the comments you posted are true...
1. It doesn't have a file system so it cant upload and download files, it doesnt have flash so it can't use hulu, you are limited to only app store apps, no photoshop or other similiar productivity apps. So yes it's not as useful as a laptop.
2. It costs Apple 250 bucks to make the 16gb iPad they sell it for 500, So yes it is overpriced.
3. A netbook is better if you need to do some real computing or watch hulu etc...See #1, it will just do it a little slower.
4. See number 1 and 3 both laptops and Netbooks have cameras for video conferencing nowadays, it would be useful to have a front facing camera on the iPad.
Alot of these issues will be addressed with v2 of the ipad, just as they were with v2 of the iphone...it's no big deal. People seem to get so bent out of shape over the silliest things. The iPad is a neat device to have for sure, I love mine even with all it's shortcomings, but not everyone is going to agree and I can understand why and respect that. Theres an old saying you can lead a horse to water but you can't make him drink. Well you can also show a horse your ipad but you can't force him to like it!
Who cares what other people think...let it go, as long as you enjoy the device thats all that matters.
Point #2 is a crock. No one ever takes into account what it costs to pay all the people for R&D as well as to manufacture it and distribute it. And since Best Buy is selling it for the same price as the apple store I doubt they are making no profit off it. Everyone can piss and moan about features but not one of you knows what it really costs to make these. Only what the parts cost ( and even that is most likely wrong since only apple and the companies they made the deal with know what they paid for parts). Everything else is speculation.