i used the 900's last nights and are practically identical to the 1000's except for a few cool features like the 900's slip effect which when activated now matter what you do to the song cut scratch loop crush or whatever the feature puts the song back to where it was which blew my mind and imo i would get just for that, but if you have zero desirablity for usb id say go for the 1000's, at the end of the day they are what will remain in the clubs for a while yet