I want to buy a tablet device but I can not decide if I need one. I have my office iPad(1G) and I am using it since almost a month. but still it does not feel like essential part of daily life. I bring it home everyday but I don't use it, rather I don't feel like I really need to use it. so I would like to ask you guys if you have one and if so then how often do you use it, where do you find it useful? Please share your experience.