I have been involved in BDSM ten years and have studied the ideals of Gor most of that time.  No i do not believe Gor is a real place, only that the M/s relationship mentioned in the books are valid.  I don't believe Gor is for everyone in BDSM just like BDSM isn't for everyone period. 

 To put it simple, it is my way or not at all.  I have dropped slaves in the past for what they considered minor things.