I kind of like the external GPU idea, but they are still so expensive. In essence i could carry around an Ultrabook with a decent CPU and at home/work plug it i

I kind of like the external GPU idea, but they are still so expensive. In essence i could carry around an Ultrabook with a decent CPU and at home/work plug it into a a Thunderbolt Dock that gives tons of ports an has an external GPU + Dual Screens. That way i can be truely mobile on the go and have a decent workstation and gaming rig at home, without the Laptop GPU Fan going at 100% and also much faster.