Netduino parts seem so much more expensive than the Arduino parts.  And that would be true. 

Pros (for the Gadgeteer or Netduino):

    • Saves  time on the other side by using a high level development tool with a debugger and you can do object-oriented event driven code like Visual Basic or C#
    • Faster clock speeds
    • Gadgeteer supports Arduino, Arduino does not support Gadgeteer
    • Ease of transportation

Cons:

    • Cost
    • Cables cannot be made out of wire laying about the house (which is a BIG deal)

But from a cost point of view the Netduino is more expensive.  But I need to get stuff done, and I need stuff that is portable.