MIDI files are great. You can import them into a sequencer such as reason cubase etc and just use the drum track as a backing track and mute the other instruments so you can play along and record your own guitar and bass parts. Saves me having to program the drum tracks myself cos I'm a lazy sod.
Why would anyone want midi files of a band? What use are they anymore?
Becuase then you can import the midi file in Guitar Pro and *shcwuusch*, you got your self a complete tab with bass, guitars, drums and hopefully even song melody.... dumbshit