where do you buy your Ardunios and other stuff and why?
The Answer is only ONE Arduino is enough no need to buy further! it provides you that much of a solid base that very soon you would just buy ATmega's and put them on your own circuit and even more serious users will go further to ARM and other more power uC's(like me) and still remember the Legacy of 'Arduino' that once helped feel those butterflies ,that once started the phenomenon of leaving your imagination blasted!