I don’t get it either. That my MacBook and ThinkPad don’t have touch screens is a selling point for me… no possibility of fumble-clicking things accidentally, and a good trackpad (and/or trackpoint) do everything a touchscreen does exactly as well as a touchscreen does. Personally touchscreens on laptops feel like compensation for bad/mediocre trackpads.

Also in the case of the ThinkPad, lack of touch support lets it have a matte screen which I definitely wouldn’t trade away for the average glossy laptop screen — Apple’s glossy screens have decent antiglare but those from most other manufacturers are almost mirrors.