I have a 4" 27-2 that is recessed but not pinned. Nice enough to be proud of but not so nice that it just sits in the safe. Figure it was someone's last duty revolver.... before they were forced to carry a G----!!!!!
A lot of good info above...... 4" 27s weren't cataloged until 1979 or 80.... in direct competition with the then new L-frame 686/586s. There was a thread a year or so back with data that the 4" 27 was the least common barrel length produced ..... by a good margin IIRC
For years I pined for a 3 1/2" 27..... but truth be told when you get to the N-frame the extra 1/2" of barrel really doesn't add much "bulk"
$1499 seems high...... or maybe I'm still living in the 20th Century!!!!!!