It is necessary for college to collect tuition from all students, even if they are receiving degrees in the arts. Colleges need to collect fees in order to cover their operating costs. Without tuition, colleges would not be able to provide a good quality of education for their students and a good workplace for teachers.
Yes, tuition fees are justified when one receives an arts degree. It is appropriate to pay a fee for services received. When an individual chooses to pursue a degree in the arts they are aware of the fees involved. If one wishes to pursue a degree in the arts they should be prepared to pay the tuition that is charged. If they do not wish to pay the fee they should pursue other interests.
If tuition fees are justifiable anywhere, then they are also justifiable in the arts. There is a strong argument that education everywhere should be free, but so long as charging fees is an accepted practice, then the arts are no different than any discipline. The value of an education goes beyond what the possible monetary gain from it will be; an arts degree may not always make you rich, but it will enrich you. Receiving a quality education in the arts requires the same amount of resources on the part of the school as it does for any other discipline, such as the sciences.
Overall it is made very clear going into the program what you will be getting out of it and what it is going to cost, I think that if you are willing to commit to that then you should pay any fees that are asked of you in the end.