Remember the scene at the beginning of MISERY (both the book and the movie) where the writer protagonist finishes his latest book, piles into his car with the typewritten, unphotocopied manuscript, and drives off into a blizzard? Obviously no actual writer these days would travel around with a non-word-processed, uncopied manuscript to a hotly-anticipated book. And no writer would try to fly to England with that manuscript as carry-on luggage.
Unless, of course, your name happens to be J.K. Rowling . . . .