[citation][nom]Jerod9000[/nom]I think you guys are missing the main function, the number pad on computers thaat don't have one. I'm assuming you will be able to use it as such, and also turn off the keypad so you don't press numbers while using the mouse. I would buy one if I dealt with numbers constantly.[/citation]
Why not just buy a standard keyboard?
How about a display with a calculator on it? It makes as much sense.
The big 'advantage' of an external calculator is that instead of clicking copy and paste (or Ctrl-C and Ctrl-V) on your PC keyboard after you compute a result with your on-screen keyboard, you can simply look at the display of the external calculator and type in the result digit by digit, decimal, sign, etc...