Because every TV, monitor and projector in America has mini display port instead of HDMI? Most companies have budget monitors. Budget monitors only have VGA, HDMI and/or DVI.
That was pure genius Lenovo guys!
Plus, we all wanna be like Macbook Pro people, "where's my dongle? do you have a dongle? anyone have a dongle I can borrow!?!"
I would get it if it had HDMI.
2560 x 1440 monitors tend to have a Display Port connection ( just use mini to normal size cable).
I would assume people who buy ThinkPads buy other expensive things like a 2560 x 1440 resolution monitor.