I thought that "Raising Steam" was a rather odd book when it came out as it contained just about every character in the Discworld. Now it seems to make sense as it's like having a curtain call for everybody.
I also never met the man and in some ways I mourn more for Sam Vimes, Moist Lipwick and the Librarian.
Which perhaps is how Mr Pratchett might like it. Thank-you sir for some great times. Especially Night Watch.