Re: Just a consumer.
I am not a big fan of Mills & Boon -style paperback fiction but I'm sure it's a "great reading experience" for you. However try using your Kindle for PDF reference material intended for A4 size, you will soon wish you had a 10 inch tablet instead.
I do exactly that on my Sony PRS-T1. Pinch-to-zoom is obviously a bit laggier than a capacitive screen but works perfectly well.
I'm one of those people that believes in having the best gadget for a particular job. I own a smartphone, but keep an iAudio J3 for my music, because it's just far better at it, and has an insane battery life. Same goes for my e-reader, my PSP, etc; I have them alongside my smartphone because they're better at their given tasks.
Sure, I could read my eBooks on a larger, heavier, more cumbersome device with a lower battery life and a screen that can't be read in the sun. Alternatively, I could continue reading them on a device that fits in my jacket pocket, has a battery that lasts a month, and weighs practically nothing.
Seriously, when Sony touted this reader as the "lightest on the market", I honestly didn't give a shit. I've never gone in for "oooh, ours is so thin" with smartphones - hell, I used to own a HTC Athena - but I was surprised at just what a difference it makes with an e-reader. Makes a lot of sense when you think about it. I'm going to be holding the device I read on in any number of positions (such as above my head in bed) for long periods of time. Even the difference between the Sony and a Kindle is noticeable to my keyboard-buggered wrists. I'd hate to try using a large tablet for the same.