I understand pistols that are engraved and inlayed and plated to the point that they are essentially un-shootable objets d'art, or at least I do when the guns in question are old Broomhandles or Lugers that probably wouldn't get much range time anyway. They're not my personal cup of tea, but I understand them.
What I don't get is heavy engraving and serious bling on modern MIM-'n'-plastic guns full of toaster parts. It's like seeing hand-stitched Connolly leather, lambswool Wilton carpets, and a hand-polished walnut burl dash in a Toyota Camry with stamped steel wheels and dog dish hubcaps.
(H/T to Rational Gun.)