He's right. After getting an e-reader, I've been reading more.
There's no way I'd take a 1000 page hard cover book onto the bus (*). It's just too big and fat to carry around in my laptop bag (which also holds my other stuff I need for work). It's inconvenient to read as well.
When using an e-reader, it doesn't matter if if the "book" is a paperback, a hard cover, the complete works about Sherlock Holmes, or the complete works by Charles Dickens. The e-reader slips into the front pocket of the laptop bag, or, in case of my winter coat, in the pocket on the inside... including the cover.
That way, I get 1 - 1,5 hours of reading in (at least) each day which would otherwise not be the case.
(*) And what about indulging in a quick Forogtten Realms read, as a grown man? Don't tell me you'd just read it in public transport. You wouldn't
