You can find them with no CD or floppy drive attached to the main unit which makes them very thin and light (less than 4 lbs/just over an inch thick). To use the CD or floppy drives you have to attach it to the docking station such as in the case of the Thinkpad. They are a lot of money for what you get though. They don't have the power others do, so you're paying for it being small and lacking all other features. Looking for something thin AND cheap, good luck and go used. Look at Ebay and also the major brands often have a section of their website you can find refirbs cheaper.