My IPad...is about 18 months old and I use it for everything. I think mine is a iPad 3, but it's got enough. Also, I have other apps installed, so I can actually use it to prepare documents etc, with a portable keyboard.
Most electronic hire places hire them out also, if you wanted to try before you buy.
It took some getting used to, but I'd be lost without it now and don't own a computer anymore.
Mine has books (yes, I love them on my ipad now), music, I can take photos, use email, search the web. I Bluetooth my music to my wireless speakers and use my ipad for music in my house.