Reply to Looking to Switch to Serato

Hey Im looking in to switching from traktor to serato. I currently have 2 dj setups. One is using an X1 and my mixer connected to my computer via an Audio 2 running traktor on my laptop. The other is using CDJ 1000s and my mixer and djing with cds. It is a pain in the ass to burn cds every time i want to get a new song so I want to either get traktor A6 or a serato box. I very interested in getting serato and would much rather do that however I am unsure if I should buy a SL1 or and SL2/3. Obviously the 1 is cheaper but is it too outdated to use live? Any help would be greatly appreciated!