If you are looking to own and love the pistol in question, $1,100-$1,200 is a solid buy price. You'd have to pay hundreds less if your grand plan is to try and flip it for money.
My experience with 52's is with 52-2's exclusively. Low A-prefix SN pistols tend to have more "value" and higher price, these often have the prettiest bluing/finish, while the later three-alpha SN guns sometimes seem a little less lustrous and pretty, some times exhibiting plum color or plum color on thumb safety and/or slide stop.
However, it's been my hands-on experience with 7 of these in my little group of friends that the three-alpha prefix guns absolutely shoot every bit as well as the earlier pistols that seem to bring more money.
The 2nd post by RILEY31 above with a 95% gun, 3 mags and $700? Well, phenomenal buy right there and worth high-fives and accolades, but that is -NOT- a market price. I would not let that anamoly suggest that it is repeatable. That is no more repeatable than buying a dollar scratch off and hitting the $500 dinger.