I found this The 7 Deadly Sins Of DJing | Digital DJ Tips interesting and yes, I have thought along these lines myself in the past as i've tried all sorts of turntables, mixers, set ups, Serato Scratch Live, Traktor Scratch even a CD deck once looking for a perfect set up and yet, at the end of the day, while I have bought some new toys to play with from time to time, when I play out or play at home I still prefer the 2 turntables and a fairly standard mixer (using Serato scratch live at times to fill in for the tunes I don't have.)
''7. Lust
Hey hey, it’s everyone’s favourite sin! But seriously, lust is destructive. What I am talking about here is not shagging the promoter’s girlfriend (although that’s usually pretty inadvisable), but rather: Gear lust.
Here’s a big truth: You can DJ on pretty much bloody anything. Never forget that the scene you know and love was built on gear that didn’t change for decades. It’s only recently that people have begun to believe that you need the latest and greatest gear just to get your foot in the door.
'Two Technics and a standard mixer'
For many, many years, this was basically it for DJ gear. While I wouldn’t like to return to those days, I do think DJs nowadays need to worry less about what they’re using, and more about what they’re doing.
Sure, gear is good. Sure, you can do cool things with it. Sure, we love it as much as the next DJs do. But “real” DJs settle on what they’re happy with, then concentrate on their craft. Hint: It’s about music, not Midi. It’s about people, not products. It’s about feelings, not functions.
The bottom line: Pick and set up your DJ gear carefully, then forget about it. Only change your gear when you really have to. Concentrate on the real skills, not the “next big thing”.''