If you are only buying your Nook Color to read books, then ignore all this stuff about rooting.
I seem to be one of those rare people who only wants to read books on my Nook Color. I bought it to read books with and it is fine for that.
Remember that the people who haunt these forums (fora?) tend to be nerds and geeks. Don't feel bad if you only need to use the Nook for its intended purpose.