Bhphotovideo offers Apple Magic Wireless Keyboard with Numeric Keypad (Space Gray) for $129.99 (reg $149.99) with free shipping.

Product Description:
The space gray Apple Magic Wireless Keyboard with Numeric Keypad features an extended layout with document navigation and full-size arrow keys. The numeric keypad also allows for faster input of numbers, especially useful for spreadsheets and finance applications.
Each key features a scissor mechanism that allows for increased stability as well as optimized key travel. The low-profile design also provides a comfortable typing experience. The Magic Keyboard has a built-in battery that can power it for up to a month on a single charge (battery life may vary). When the battery is running low, you can recharge it with the included Lightning to USB cable.