uhh i bought mine for 30..my time is worth more than 10/hr...
it's fun, thats why I do it.
My staircase at my house has touch adjust white LED's in the walls and sensors on the handrail, built into the wall when I made the staircase, so at night when walking up the stairs, I touch the railing, and the lights automatically come on.
One time I spent 2 years designing a transistor analyzer (in 11th and 12th grade) talk about dumping time into something. after i patented it I entered into some design competitions and did end up making a few thousand from it. back then I could not even afford an oscilloscope, i did the whole thing with measured values and calcuations, i did the board layout and etching by hand without any software, I did not even have a breadboard to test my design! I drew and drilled every trace by hand, 1038 something holes drilled by hand with precision drill bit set, and 3 months on the board design and drawing alone, 13 IC's bunched. in a 4" by 2.5" board, single sided, three 7 segment displays, and only 7 jumpers. got 3rd place in a world duracell design competition. and first in several others. I think I was 17 at the time.
Edited by 12oclocker, 13 February 2009 - 11:06 PM.