I used to have a 15, 66, and k-22, absolutely loved them. They all required endshake bearings and new mainsprings. I put more time and parts in my Smiths than I have in my Ruger Six series. Although, just last week, I had to put endshake bearings in one of my Six Series revolvers.
My opinion is: if you shoot them a lot, no matter the brand, they will need service. A stiff trigger, misfires, cylinder not closing, etc. usually... just a simple fix, but if one continues to ignore simple warning signs a quick fix can turn into bundle of cash.
Moral of this story. Be nice to your revolver, and it will be nice to you.