I recently compared my 336W (older JM production) that I picked up some years back at a Wal-Mart to a brand-new 336C at Sportsman's Warehouse. Whereas my 336 has a nice blued receiver, nice even finish on the barrel and decent wood (for a birch stock), the new 336 I looked at (retailing for about 150 bucks more than mine cost new) had horrible, shallow checkering, a dull almost matte finish on the receiver and barrel, and the stock was just ... heinous. Some bizarrely striped laminate faux wood looking crap ... And the new fatter fore-ends ... why? They ruin the feel of the rifle.
The 1895 in .45/70 I just looked at down at my LGS -- new Ilion NY Rem-lin -- was simply horrid. The "checkering" on the stock was so shallow it was almost invisible. The fit and finish, frankly, stunk -- there was a gap between the bottom of the receiver where it met the stock. Marked at about 650 bucks, uh-uh, no way.
I'm sorry, but I haven't seen a new production Marlin that comes close to even most of the older budget models. There's a very, very good reason the used JMs are going for more than the new Rem-lins.