Saw one at a gun shop for about $450 out the door. No rail. Has 3 mags and night sights. I'm THINKING about it. Love these 3rd gen Smiths and I've been thinking about joining the .45 caliber club (carry 9mm currently).
I while it was never a favorite, the 4566 was my first duty pistol and one I'll always have a soft spot for, for that reason. They are built like tanks and are superbly reliable. Mine would actually feed an empty case from the magazine with a hiccup.
I bought a new one from guncollectors that was a 2006 and I paid 850 for it and i don't regret it one bit.....I would of loved to find a used one at that price....very accurate and 2000 rounds with out a single jam, fte, or mis fire......Great pistol