> Примерно 200 тысяч долларов. На такой проект нужно трёх нормальных программеров. Работать
> они будут примерно 6 месяцев, это включая исследования, разработку и тестирование.
> Средняя зарплата каждого 10 тысяч. Получим 180 тысяч. Ещё 20 тысяч
> уйдёт на содержание рабочих мест и оборудование. В итоге 200 тысяч

$ sloccount linux-3.8-rc1/fs/f2fs/
[...]

Total Physical Source Lines of Code (SLOC)                = 9,681
Development Effort Estimate, Person-Years (Person-Months) = 2.17 (26.03)
 (Basic COCOMO model, Person-Months = 2.4 * (KSLOC**1.05))
Schedule Estimate, Years (Months)                         = 0.72 (8.63)
 (Basic COCOMO model, Months = 2.5 * (person-months**0.38))
Estimated Average Number of Developers (Effort/Schedule)  = 3.02
Total Estimated Cost to Develop                           = $ 292,993
 (average salary = $56,286/year, overhead = 2.40).
SLOCCount, Copyright (C) 2001-2004 David A. Wheeler
SLOCCount is Open Source Software/Free Software, licensed under the GNU GPL.
SLOCCount comes with ABSOLUTELY NO WARRANTY, and you are welcome to
redistribute it under certain conditions as specified by the GNU GPL license;
see the documentation for details.
Please credit this data as "generated using David A. Wheeler's 'SLOCCount'."

$ sloccount linux-3.8-rc1/

Total Physical Source Lines of Code (SLOC)                = 10,932,586
Development Effort Estimate, Person-Years (Person-Months) = 3,480.88 (41,770.56)
 (Basic COCOMO model, Person-Months = 2.4 * (KSLOC**1.05))
Schedule Estimate, Years (Months)                         = 11.88 (142.52)
 (Basic COCOMO model, Months = 2.5 * (person-months**0.38))
Estimated Average Number of Developers (Effort/Schedule)  = 293.09
Total Estimated Cost to Develop                           = $ 470,219,539

А ведь было ж миллиард! Все полимеры...