We are a two Kindle family. After I got mine I had to get my husband one so I could use mine.
As far as turning pages, at first I thought the books were abridged, I read so much faster. The page turn button is great and you waste much less time finding your place and keeping it.
At this point I'm not planning to upgrade to the newest Kindle, but the price is GREAT! I'd definitely go for the 3g just for the rare occasion like driving along in a car when you want to get a sample and then love it so much you must have the book right then and there.
You can find some really good deals on the Kindle boards right now. People are selling there K2 to upgrade to the new model. That's where I got my hubby's and it's in great shape. Some of them even come with a warranty. I'd just watch to see that the person selling has enough posts that they are a well known member.
"Chisel praise in stone; write criticism in sand."