http://mashit.com/2007/11/12/club-dj...on-for-piracy/ He said legitimate DJs were being undermined by pirates who could afford lower rates. "I've come across people that I've DJed alongside at various functions where their laptops have been filled with MP3s - they show it off," he said."If I'm going out buying vinyl and I've got some young buck with a computer full of 20,000 MP3s, it's hard to compete."
I have used final scratch, for 6 monthes and its great if you are a bedroom dj playing the odd internet show here or there because the end sound isnt great anyway, but as soon as you get it out on a loud system and you amplify a crappy mp3, it sounds god awful - why do you think people dont record radio shows and upload the mp3's much anymore, because its not sounding good.
Also when you are downloading 128 mp3s instead of 320s and playing them, you record a mix with a 128 and then you re compress that wav file even more - as a further mp3 and it ends up sounding shocking.
The argument is, play Wav files, but the reality is no one does and there isnt enough space on your hard drive to store full wavs, and then... using an external portable hard drive is unstable.
Vinyl sounds better - always will.
http://www.adelaidemassive.com/index.php?topic=785.0 
cdj's seem like a practical solution, but spinning vinyl is pure awesome
