In the sixties everyone you knew became famous. My flatmate was Terence Stamp. My barber was Vidal Sassoon. David Hockney did the menu in a restaurant I went to. I didn't know anyone unknown who didn't become famous.
I have been a reader of Science Fiction and Fantasy for a long time since I was 11 or 12 I think so I understand it and I'm not at all surprised that readers of the genre might enjoy my books.