Okay thanks you guys. I guess there isn't a real reason to go with anything like the TI-Nspire (teachers aren't using it/recommending it etc.). It seems that there is poor documentation for the product and so it could be confusing for people who aren't tech savvy, the resolution is "downgraded" to the TI-84 resolution when using the TI-84 keypad (not like it's a major thing), and the buttons are tightly fitted predisposing the user to a higher chance of typographical errors - according to reviews that is. I hope I don't have remorse although Texas Instruments have pretty good calculators (have a TI-30X IIS which is awesome).