Although their names are so, sport-clubs, reality is that they are actually soccer clubs. We see this in the media. 95% of all Fener, GS and Besiktas news in the media are all soccer-football related. They have no real basketball or volleyball fans, at least, a few only. That's, why we see their soccer fans in basketball and volleyball arenas, chanting soccer songs, etc. There is no volleyball culture at these so-called sport clubs. Volleyball culture is only at the clubs like Ecz, Vakif, Arkas, etc.
I think that is not the matter of having volleyball culture or not.. at least not for me.. I am a galatasaray supporter in football.. but my favorite volleyball team is vakif.. because in turkey only vakif presents something to watch.. observing vakıf's turkish players improvement is amazing.. their motivation and their team work always worth to watch.
if this teams name were galatasaray instead of vakıf nothing would change for me.. i would call galatasaray as real volleyball team..