For me it is either $829 + $58 state sale tax = $887 for refurbed
or
$929.95 got a new one at B&H with no tax or shipping. So the delta between refurbed and new is around $42 for me. For that delta, I would go new as one would go to my wife under the Christmas tree.
http://www.bhphotovideo.com/c/product/812533-REG/Apple_MC914LL_A_27_THUNDERBOLT_IPS_LED.html
I was reading a rumor on another site that suggested the new iMacs will be delayed until 2013 due to problems making those fancy welded edges. If so, any new ATD introduction would also slide. So for me the question is ....a new 1st genration now.....or......new second generation sometime next year (hopefully). I may just have to go first generation. When I upgrade my rMBP in 3 years, I can upgrade the ATD to second...or 3rd? generation.