Holding it's value
I look at it this way... if a gun increases in value to the same extent as Gold, it's holding it's value. Gold always has the same value... It's the dollar or other currency that fluctuates. So if your S&W or SAKO goes up as the price of gold, then you're ok.
As well there is the availability (supply & demand) thing, and popularity... that's why you can buy some S&W's for a lot less than others.. they're all made from the same materials (more or less) so value differences are brought on by features or quality differences from other pieces.
I've had guns that didn't do anything for years, and in fact declined in value... then two more years go by and they jump to new highs. Seemed the model 25-5 was in that category for a few years, now they are keeping up with the other N frames.
I've grown a new appreciation for the older S&W's from the craftsmanship standpoint. They have light trigger pulls, and are fine shooters. Unfortunately many were holstered because in the day they were sold, people bought holsters, and kept their gun in it... (bad idea) Luckily my Elmer was one that didn't believe in that and warned me of the dangers of cheap leather. I have him to thank for many fine looking revolvers without muzzle wear or frame wear from a $10 holster.
By the way I think S&W made a huge mistake by introducing the "Classic" series guns. These wannabe's are never going to be worth what their older counterparts bring, and the quality is just lacking. There are plenty of other good choices, that are not simply mutient clones of the past... If S&W wants to make a Classic, then bring out the same identical piece, with the same grips, and all the pinned and recessed stuff, and let the price be what is needed. Then you indeed have a "Classic".
One reporters opinion....
David