I have the 2011 Anthem X Advanced SL 1 (carbon frame XT model) which I paid around 4K for brand new. They are going for a lot less than that now so unless you specifically want the 2012 model save yourself heaps and buy one now. I have also seen the 2011 full XTR SL 0 for under 6K, this came out in Feb this year retailing for $8k. Yes this means you are losing lots of $$$ selling 2nd hand but I think you lose heaps selling any 2nd hand mtb, I did when I sold my immaculate Epic a few years back. Giant has really hit the mark with these bikes, they ride unreal, look hot and cost bugger all in the scheme of high performance XC duallies.
DM