Classic DJs know that the Technics quartz direct drive turntable system is rock solid and reliable. While your software DJ setup gives you endless filter possibilities and automated transitions, you can never be certain that your application is not going to crash and your audience may have to wait for a system reboot. The SL-1210's record platter will keep spinning for days. Keep a few extra needles around and your backup plan is rock solid. Also may DJs and music enthusiasts will comment that the sound waves generated from vinyl records are much higher quality, more fluid, and more natural sounding than the 16 bit audio from CDs, and especially better sounding than low quality MP3s. The 1210 has a variable pitch control from -8% to +8% that a DJ can use to match the tempo and key of two songs using two turntables. Be sure to use a slipmat for easy control of the record's speed and scratching samples so you don't put unnecessary resistance on your direct drive platter.