I've only recently become a fan of Heinlein as well, and have only...oh, I have six of his books (I thought I only had five! Just did a quick count). And all, expect one (which I picked up in Waterstones' three for two offer) came from second hand bookshops. I love second hand books, they often have the really retro covers and they have that wonderful old book smell. As nice as it is to crack open a shiny, new book, I adore the books I buy from independent shops. It's a strange way to describe it, but it's the only way I can think of doing it -- second hand books seem to have more character.
Oh, forgot to say...nice collection!
