I know I won't pay extra for a Magnaported gun. I won't buy it at all. If it really increased value then folks would be Magnaporting them for the profit motive. Most folks seek originality and don't desire additional openings in their barrels.
Back to the .44 Special. It's easy to see why it's loved. It's a bit exclusive. The traditional .44 Special Colt and Smith & Wesson revolvers from bygone times are classy and elegant. From the handloader's perspective, the cartridge is very adaptable for most any chore requiring the application of a handgun bullet. It really is accurate. It doesn't appear in handguns utilizing plastic as a featured component.
I only have one .44 Special, a Model of 1926 that shipped in March of 1932. Shown here with a long-barreled Model 29.