In reply to Only a hill:
'coffee table' books are both useful and showy. pictures aren't quite the same on ereaders (size if nothing else, at least on readers that aren't expensive. But then again, a large coffee table picture book could easily cost £30..)
Paper books are great for flicking through/referring back. i read quickly and page lag / smaller pages on ereaders annoys me. And i carry puzzles cut out of the paper in the backs of books. no reason for not doing the same with an ereader i suppose.
Technical books - paper everytime (i add notes in the margin) and add labels to pages. Presumably this is possible in some ereaders.
Bath: can you get waterproofed ereaders? that's be nice.
backlit ereaders look brilliant.
I do have a cheap ereader. fantastic for commuting & holidays, no need to struggle turning pages while holding onto a rail, no more 5 books in luggage and no risk of taking a book you don't enjoy.
Size is a funny thing (ahem!). small is good, but it feels a bit strange reading in a 't-rex' position
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Shelves of books look great, really nice to run your eyes & hands over them & pick a surprise. I do judge people on their bookshelves..unless that jeffery archer omnibus is hiding a half-bottle of malt, then adios amigo