Value for money or Arduino duemilanove 2009 is better

: Using the Atmel Atmega168 328 processor, because of its many supporters,
The company has developed a 32-bit MCU platform to support Arduino.
The current Arduino Control Panel is the latest Arduino Uno, as shown below:
Domestic use of more than the Arduino Duemilanove 2009, the main reason is
UNO's USB control chip package changes, manufacturing costs rise, other changes are small,
Value for money or Arduino duemilanove 2009 is better.
Due to its open source features, the manufacturer of the Arduino control Board is numerous, the same
Duemilanove 2009 is a variety of colors.
For some of the more stringent board size requirements, the Arduino team provides
Arduino Nano, this board is very small in volume. The following figure: