answer:As a Nook first-generation user I can’t advise you directly, but I can share some experience that may help you to decide. When I first got my Nook I could read on it for weeks, it seemed, before it would need recharging. (A simple enough process with the micro-USB charging cable, but because of the inconvenience of using the thing with the attached wire, I would count that as time lost from being able to use it.) And since I read pretty much every day, usually for an hour or more at a time, that time-between-charges was measured in full days’ worth of usage. Now when I read at lunch I have to charge afterward to ensure that I can read the next day, too. The battery is losing capacity, in short. I’d check how long the charge lasts on your device and consider that as a factor in your decision. I haven’t replaced my Nook yet, but I’m sure that I will sometime this year.