The bands were also quite good; Smock are a quite promising mix of glitchy electronics, female vocals and shoegazer guitarwork. And Seedy Reed was just odd.
(a) My laptop is a Pentium 133; hardly powerful enough for that sort of thing.
(b) It's the interface. Typing on a QWERTY and sliding a mouse around is a lot more fiddly than moving physical sliders. Which means that either (a) it makes things harder, or (b) you get software which does it all for you and just select the next track from a menu. And clicking menus on a laptop doesn't have the same sort of studly babe-magnet potential that operating a mixer does.
True, true. Maybe if you link a MIDI slider-controller to the crossfade on the software, for another layer of cool complexity...
Really, why not just dump a whole pile of files on a laptop and mix between them in one of the dozens of appropriate pieces of software? Or is a real mixer with physical sliders the only piece of equipment that defines one as a DJ these days?