Unfortunately for many people it comes down does it have a Trackpoint or not. It limits choices, which can be nice sometimes, but Thinkpads often fall short of the best combinations. It's a shame, given the Thinkpad legacy and the fact Trackpoint is a unique feature, that they take this strategy, it's anti consumer and can't be good for them to produce and support so many models. They should just provide a flexible base with replaceable keyboard, but they do not do that. Until mind reading works well, the Trackpoint is a great input device, once it's no longer an option these devices become a near brandless commodity.