Free alternative to college education

For last year we are seeing an increase of hight quolity MOOC (massive open online courses).
Coursera, Udacity, edX and so on. More and more people have interest in this.

I tried to do small research on subject "if it is possible to use free online courses as alternative to expencive traditional college education".

I aimed to find some real program of study from traditional college. The first i found with google was Georgia Gwinnett College. I know nothing about this college. I only see that it looks the like "traditional US college".
I choose the program Bachelor of Science in Information Technology - Software Development. I did this choice because computer science courses are most popular now (i think because of most easy to learn online and most current online students are tech persons).

In the table below i listed courses from this program and, as alternatives, free online courses .

Course from the program	Free Online alternative
ENGL 1101 English Composition I ENGL 1102 English Composition II	http://education-portal.com/academy/course/college-composition-writing-course.html
MATH 1113 Pre-Calculus	http://www.khanacademy.org/math/precalculus
ITEC 1001 Introduction to Computing	http://www.extension.harvard.edu/open-learning-initiative/intensive-introduction-computer-science
Choose one from the following: MUSC 1100/ARTS 1100/ENGL 2110/2100/FILM 1005	https://www.coursera.org/course/modernpoetry https://www.coursera.org/course/guitar
Choose one from the following: RELN 1100/GEOG 1101/2000 level foreign lang	http://education-portal.com/articles/List_of_Free_Online_Geography_Courses_and_Educational_Materials.html
Science, Math, Technology	http://www.khanacademy.org/math/probability http://www.khanacademy.org/science/chemistry
POLS 1101 American Government	http://www.ucopenaccess.org/course/view.php?id=81
HIST 2112 U.S. History	http://ocw.mit.edu/courses/history/ http://ocw.mit.edu/courses/history/21h-101-american-history-to-1865-fall-2010/ http://ocw.mit.edu/courses/history/21h-102-the-emergence-of-modern-america-1865-present-spring-2003/
HIST 1111 World History	http://ocw.mit.edu/courses/history/
HIST 1121 Western Civ	http://www.learner.org/resources/series58.html?pop=yes&pid=819
PSYC 1102/SOCI 1101/ANTH 1102/ECON2100	http://theopenacademy.com/content/introduction-psychology http://alison.com/courses/Introduction-to-Economics
MGMT 3000 Principles of Management	http://education-portal.com/academy/course/principles-of-management-course.html
ITEC 2201 Introduction to Info Systems	http://alison.com/courses/Introduction-to-Information-Technology-1
ITEC 2150 Intermediate Programming	https://www.coursera.org/course/programming1 https://www.coursera.org/course/programming1
MATH 2000 Statistics	http://www.udacity.com/overview/Course/st101/CourseRev/1
MATH 2300 Discrete Math	https://www.coursera.org/course/intrologic
ITEC 2110 Digital Media	http://contentetc.com/introduction-to-digital-media
ITEC 3100 Intro to Networks	https://www.coursera.org/course/comnetworks
ITEC 3150 Advanced Programming	http://www.udacity.com/overview/Course/cs215/CourseRev/1 http://www.udacity.com/overview/Course/cs253/CourseRev/apr2012
ITEC 3200 Intro to Databases	https://www.coursera.org/course/db
ITEC 3860 Software Development	http://www.udacity.com/overview/Course/cs212/CourseRev/apr2012 https://www.coursera.org/course/posa
ITEC 3900 Professional Practice & Ethics
ITEC 4260 Software Testing & QA	http://www.udacity.com/overview/Course/cs259/CourseRev/1 http://www.udacity.com/overview/Course/cs258/CourseRev/1
ITEC 4860 Software Development Proj	Be member of any open source project on Github.
PHYS 2211K/2212K Prin of Physics	http://www.khanacademy.org/science/physics
BIOL 1107K/1108K Prin of Biology	http://www.khanacademy.org/science/biology

I was not able to find only alternative to "Professional Practice & Ethics" college course. There are many information on this. But no some free online course.

Therefore, for college program "Bachelor of Science in Information Technology - Software Development" there is free alternative.

So why students still pay so big many for traditional colleges programs?