That's right, the really important questions. lol.
I've never been an ebook person. Too impersonal! I want to occasionally be so wrapped up in a book that I'm holding on so tight I smear the ink on the page!! (Anyone use and like Kindle? How does it hold up in the so-good-I-smeared-the-ink category?)
It used to be that hardcovers were the coveted format. But they are so spendy! And, as has been noted here (I forget by whom, sorry!), they take up a lot of room on the bookshelf. Still, they feel great: solemn, serious, and substantial.
Still, the messier paperback is great just because it is messier. You can rumple the pages and the corners get dinged. That proves it's been loved and well read, right? And a trade paperback still looks serious. Though Mass Market paperbacks are awesome for the 'fun' you imagine having while reading them, like when they get smeared with sunscreen because you are reading on the beach. lol.
--Can you tell reading is a partly tactile experience for me?! lol.
I'm guessing everyone has their preference.
Care to share?