Plastic, great marketing and politics killed the revolver as the American LE standard. The high cost of producing revolvers didn't help. If you recall, the makers of the new fangled "wonder nines" all but gave away their new guns to get a foot hold in the market (even our beloved S&W) giving high trade-in prices and new guns at or near cost (but made a grundle of money selling extra mags ) in order to convince the politicians that they were getting something for nothing. (Remember, Chiefs of Police, Sheriffs and Directors of public safety are really only politicians)

This can also be applied to CCW. All the modern gizzy-whizz dodads work with small semi-autos. lights, lazers, optics and such are being built into small autos or can be readily attached. Revolvers, with the exception of add on grips, are very limited. I still carry a revolver and am looked at as a semi-extinct species (probably true) Anyone under 35 or so can't remember when the revolver was king and were brought up on autos, usually plastic or aluminum framed and can't understand why anyone would limit themselves to a 5 or 6 shot wheelgun. (The exception being a few that have embraced the 1911 platform.) The world changes. Not always for the better.