Is it a sin to read for fun?

Do you hide the novel you're reading on the train into work behind a sheet of newspaper? Or lie when asked if you've read (and understood) Ulysses?
Personally, I think any reading is good reading. Particularly these days, when the notion of reading has been so very easily trumped by more instantaneous, electronic, handheld devices. Sure, there are some forms of literature which are of a higher intellectual standard than others, but who's to judge?
Read more about this train of thought here.