Thank you for your answers.
I did not mention that where I live studies (full time) are for free. Unfortunately, I do not have that much time so I initially chose extramural type. This basically means that I would have classes only during the weekends - exactly Friday evenings, whole Saturdays and Sundays. This kind of course is prepared for working people and of course costs something.. but much less than you wrote. Full Bachelor program lasts for 7 semesters (3,5 years), each one costs around €500 - so in total that would be €3500. As you can see money is not an issue here, rather time..