I haven't looked at an e-reader for a couple of reasons.
First and foremeost, e-readers cost more money than I'm willing to spend. (Tablets are way the heck out of my price range, even ignoring the monthly connectivity charges.)
Second, I'd have to buy two if I wanted to use if for personal, non-professional reasons. My father and I have identical tastes in recreational reading, swapping books regularly.
Third, for some reason I have difficulty processing information when reading large blocks of text on a screen. I have a problem keeping my attention focused, but I haven't figured out why. I keep rereading the same paragraphs repeatedly, as if I was tired. (This problem may be limited to reading text on a standard monitor; I might not have it on a dedicated e-reader. Lend me one and I'll see.)
All this good life-changing stuff comes with a price tag. So far I haven't seen any benefits worth spending the money. But I've got a work around. There are these new-fangled devices called 'printers'. They convert the .PDF into a format that doesn't require power, and can be cheaply regenerated if you slop salsa on it.