GalleyCat (which is a part of the wonderful daily media newsletter from MediaBistro) had an interesting article today about ebook and pbook sales for the first quarter of 2012.
Apparently ebook sales for the adult category (as opposed to the erotic and BSDM genre, mind you :)) have outpaced the sales of adult pbooks by about 23% (which I think is pretty significant). Ebook sales were at $282.3 mil, hardcovers at $229.6 mil
But if you take a look at the YA and children's market, ebooks are still way behind. Hardcover sales for YA/children's were $187.7 mil, while ebooks there were $64.3 mil (even though that relatively small # accounted for an amazing 233% growth over 2011. Which should give you reason for caution when hearing about the death of print books using only percentages and no real numbers for reference, or vice versa).
Why do you think this is? Are teens and adults reading YA just more interested in physical package, things like covers? Are they more sentimental? Adult readers, which side of the line are you on?