As a reader of classic literature and an avowed book collector,
I believe most science fiction dosn't come up to snuff with the best of the genre. I enjoy the classics of the genre which include Verne, Wells, Bradbury etc. I have finely printed and bound books of all of these writers, but most do not compare with these examples of classic science fiction, as most books in the crime genre do not compare with Conan Doyle, Poe, and on down to the moderns such as Chandler and Hammett.
I am very particular with what books I want in my library so I have only collected those which are truly literature: War of the Wrolds, The Invisible Man, Journey to the Center of the Earth, Around the World in Eighty Days, Mysterious Island, Fahrenheit 451, and the Martian Chronicles have deserved space in my library. The same is true of many genre such as horror. I have fine books by Bram Stoker and Mary Wollstonecraft Shelley on my shelves, but the mediocre of the horror genre, such as Anne Rice, I wouldn't want within five miles of my collection.