I meant that it would only be $200 for the paint, on a very small car

But seriously, I think $200 in material costs to paint a laptop is outrageous. I agree with most of what you said, and it could definetely get that high, but how many coats are you doing?? You should only need 2 coats, maybe 3 max, and 1 pint should be enough for both coats. Maybe 2 pints max. So lets do the math
Primer = $10
Base Coat = $40x2 = $80
Top coat = $30 (I'm assuming this is another color)
Clear Coat = $20
Total = $140
I guess it adds up eventually, but seriously that paint is rediculously expensive. But then again I'm used to getting it for a great price. I painted my whole car in black with a white pearl essence, most expensive paint I've ever used and it was $40 a pint. So I can only hope you are using an essence of gold flake, something to justify that cost.