Like it or not the Marlins made before the closing of the original company in North Haven (and the takeover by the New owners), have achieved the same status as pre64 Winchesters have. A certain level of quality is implied with JM stamped rifles, especially the hand fitted ones, that for many, can't be matched by what a huge soul-less investment company caring only about the bottom line, can put out. Frankly a lot of people feel the quality of Remington branded stuff has gone down hill also.
Personally for me, having handled some of the new stuff, I love my hand fitted JM 1894c even more (as well as my older 870). It's not only a work of art but it's got Soul! The new stuff seems serviceable enough, for me however, just seems kind of like buying a 68' GTO, only a reproduction made in china by the lowest bidder. Obviously, this is quite subjective, and your results may vary.