Please don't put out information without checking up on it first. The Kindle can get updates just like the nook does, and does regularly.
OP: Deep breaths! From what I've seen every one who has an e-reader has been happy with their own decision, though it is amusing seeing what camp everyone falls into

I own a kindle, so I'm all for kindles of course
There are many comparisons out there, but I think the best thing to start with is just to list down what YOU want. Do you want library lending? Because that wasn't important to me. Do you want to read at the park? That was vital to me (I spend far too much time at playgrounds!) so I needed something not back lit. Do you want to read in bed? If so would you prefer a book light or something backlit? There's so many questions to consider!