After enjoying my Kindle 3 for well over a year now, I purchased the Kindle 4 for my girlfriend as a Valentine's day gift. At $79, you can't beat the price or value you get in one of these devices.
I decided against the Kindle Touch since fingerprints would drive me crazy, and after playing with it, it seemed clunky and slow.
I really like the Kindle 4. It's lack of keyboard can be frustrating at times, but the machine is beautiful, quick, light and very compact. When I offered to remove the Amazin deals onthe Kindle, my girlfriend insisted she prefers the great deals over custom screen-savers.
Amazon hit the nail on the head with this one. Still, I think I much prefer my Kindle 3 (keyboard) due to the fact that I am a heavy note taker and love the added battery and storage.