Boot up time.

[aron]

Ran into a gig where they had my Kronos on a piano. Unfortunately right in the middle of the gig, someone needed to take it off the piano and put it on the side.
Normally, no problem - any other keyboard that boots fast could just be unplugged. Because the Kronos takes so much time, this was not a feasible solution. We had to use a long extension cord and make sure the Kronos wasn't unplugged when moving.
The long boot up time does make a difference in certain situations.