Hey, so I'm a senior in high school right now and I use an iPad as my notebook in school. I must say, it is probably the greatest invention ever made for the education system. I love it and every little thing about it. I am here to convince you parents/future college students about why it is worth buying. Oh and btw, don't use the iPad as a primary computer! It is possible, but it really does not do it justice. You should specifically buy an iMac or Macbook Pro to go along with it, which will really make it a perfect combination. Anyways, Here it goes:
It is very,very light and portable. So much easier to put in your book bag rather than a laptop, which is a pain in the neck.
The apple case that is specifically for the iPad is also an amazing accessory. It can turn into a stand for the iPad so that the keyboard can be more comfortable to use. The keyboard is also very great for the iPad. The virtual keys are huge and considering that I have fat fingers, it is very sufficient. I never make any typos on it.
There are many apps for it that are specifically designed for students in mind. The app "CourseSmart" has a collection of 12,000+ college e-textbooks that you can either rent or purchase. I tried searching for 10 of my sister's textbooks and it had 8 of them available. It has many apps that are formatted to look and have the features as a traditional notebook and planner, such as Coursenotes, Notebooks for iPad, FastFinga, and Evernote! FastFinga is an amazing math notebook app(or even regular notebook) and it pairs well with an iPad stylus which is available on Amazon to buy. Don't forget about Pages, Keynote, and Numbers for iPad, which are very, very sufficient enough for students. Also, the iBooks app has a large collection of ebooks and have many college required reading books available to purchase. If you're not satisfied with iBooks, there are also many other ebook apps such as the Amazon Kindle app and the Nook app. These apps all have capabilities for annotating, highlighting, bookmarking, screenshoting, and dictionary/google searching.
If you're thinking about buying an iPad, make sure you get the 32 GB model, because the 16GB one is not trustful enough. The memory goes pretty fast if you're one of those people who have a lot of songs and videos in their iTunes library. The apps and ebooks barely take out any memory space from it.
These are the only things that came up to mind when i thought about it. If you have any questions I will be glad to answer them! I am really trying to get people to understand it more than just a giant iPod touch, because it is nowhere near that.