I was 16 years old in 1989 and I had piled up money from my first job ($5.15 an hour when minimum wage was $3.35, I felt like a king!) and some saved up paper route money. I was an avid reader of Guns & Ammo magazine and writer Jan Libourel, and Libourel often had very good things to say about the Taurus handguns.
I had stewed over this for quite a long time and decided that a 6-inch Taurus Model 669 was the gun for me. It had a K-ish sized frame and cylinder but also had the full underlug barrel. We had a family friend who had helped me get started in shooting and he was a kitchen table FFL at that time.
When it was time to have him order my first new handgun bought with my own cabbage -- I thought it over once more and decided that the money I would save by getting the Taurus was real, but better spent on getting the "real deal" so I set my sights on the Smith & Wesson Model 686. At that time it was going to be the dash-3 and it was a very easy decision to say NO WAY to that crazy "silhouette" adjustable front sight. It looked gangly, it cost more and I just didn't see that I would need it.
My six inch 686-3 came with the red ramp front sight, the white outline rear sight, the smooth combat trigger and the smaller spur combat hammer. It wore Goncalo Alves Target stocks but I pulled them from the revolver before taking even the first shots. I had picked up the Pachmayr Gripper SK-G so that it would wear the same thing that all the cops in the basement of our Sportsman's Club had on their PPC rigs.
That's the first S&W revolver that I ever bought new with my own money.
-OOPS- late edit!

The first new S&W revolver that I ever owned was a Christmas gift from my Mom half a year after my Dad passed away... a 6-inch Smith & Wesson Model 17-6. Christmas 1988.
Beyond these two, I have never purchased a new Smith & Wesson revolver.