If you do the math, you actually SAVE money by buying an iPad!! I will buy two iPads. Oregon along with a host of other states now has a "hands free" cell phone law which has accelerated my move away from voice and towards email only. I also find I have access to wifi 80%+ of the time. At this point I may move away from my iPhone and towards a bare bones cheap dumb phone and a top of the line iPad. If I was in college with the typical campus wide wifi, having an iPad and a basic phone would be a no brainer. The price of a dumb phone with minutes is about $30 and the data plan for the iPad is $15 to $30, so I could save $20 to $35 per month. In my case I will more likely be saving $50 a month and only paying the data when I travel. The iPad would be FREE in 10 to 14 months!!
I don't think people really get the impact this device could have. I believe the medical field is going to buy the iPad by the truck load. Depending on the text book selection for college I can't imagine a college student would own anything else! Apple showed off the power of the OS with iWork, I suspect apps with the functionality of Photoshop, Filemaker, and Illustrator will quickly follow and that is just the beginning. I think the iPad is an even bigger step forward than the iPhone or the iPod was.