What are the disadvantages of getting a university degree online?

Nowadays there are a lot of opportunities to get a degree online even without visiting a university. I believe that despite of obvious advantages online learning has several important disadvantages.
First of all, one of the most important parts of an education is a personal communication with a teacher. If you do not understand something, you always can ask teacher and discuss with him the topic which appeared to be hard for you. Studying through internet you loose this opportunity because there are usually much many more students in the online classes and the teacher is not able to spend enough time for everybody. Therefore, if you do not get something, you should have to try to solve problems by yourself, and it is not guaranteed that you will find correct solution. Thus, I believe that lack of communications between teacher and students is the obvious disadvantage of online learning.
Next, when you get your degree online you do not communicate with your classmates in real life. Meanwhile, Students life is not less an important part of studying in the university than lectures themselves. Years spent in the university help students to become more socially active. During this period of life people are getting many social and personal skills that can be helpful in their future career. Online education which concentrates only on studying process, deprives the students of this experience in comparison with education in the university. Thus, I claim, that this is one more disadvantage of online learning. 

As I have shown, there are several disadvantages, connected with getting a university degree online. However, nobody can forbid you to study online, but I would recommend doing that in parallel with getting your degree in a university.