Funny you should mention the S&W 59 series. They have the ergonomics of a 2x4 with a handle on them. Even worse than a Glock. They aren't a naturally pointing handgun. The PDs in the Northeast that had them soon went to other, more ergonomic, pistols. Mags are more expensive than a Ruger, as well.
People need to get away from the idea that a Police Trade-in has that "carried lots, shot little" idea. Current departments qualify semi-annualy, some quartely. The average is 125 rounds between day and night shooting. This presupposes that the officer qualifies on the first round, and that there hasn't been a change in department qualifications.
In the days of revolvers, it wasn't difficult for an officer to shoot only 25 rounds per year. Those days are gone. There is no guarantee that you won't be buying a trade-in from a SWAT member, who fired 500 rounds a month, for years.
If you do a search for the Ruger Autopistol on this Board, you'll find quite a few threads. Read them, and notice how many people have zero problems with their Ruger. You'll also find the same few who just don't like Rugers, and want you to just buy something else, anything else.