Seeing as its got TP2 for FREE right now, it really seems like too good a bargain to pass up on :-S
I do fancy playing around with Traktor again, I miss it a bit, kinda phased it out when I went APC, but prefer the spontaneous factor over pure Ableton and would possibly think about using the X1 for Traktor only and APC for Ableton only.
Worth it if I have the cash ready to burn or other suggestions (apart from APC80) :p