Hey,

This is really broad lol. It really depends what you think is affordable and what kind of features you want to utilize. To somewhat answer your question, the Pioneer DDJ-SX has become pretty widely used by DJs and has been reduced in price from its original $999. There are plenty of other options but this seems to have been adopted to be 'standard' - in some sense

Get 2 turntables and a mixer and call it the day.

Agreed.

Thanks for the replies, I was looking at something more on the mobile side. Such as the ddj sx2. Is there anything that's better in terms of price point and features?

No. I really wanted some of the numark controller to be better as on paper the NS7 (1,2&3) should kill the pioneer DDJ line but it doesnt. DDJsx2 is a great controller. Finding something cheaper will be just that cheaper, with less build quality. Cutting corners in you DJ rig will reflect in you abilities. I'm no longer a turntable DJ as I have grown past the limitation of timecodes and fragileness of turntables, but as longlon learning you can NEVER go wrong with 2 tech's and a mixer. It will be by far the best platform to learn on bar none.

I just upgraded to the SX2 and love it. Can't go wrong with this as a 4 deck full on Serato controller with the flip buttons. Knobs , sliders, metal face piece all feel sturdy and really nice to use. If you can afford$700-$1000 you will love this.