These rifles have a birch hardwood stock versus the normal checkered walnut on most Marlins you see. Other than that, they are identical.
These folks quite frequently list them on sale for somewhere in the low $300's. Great buy. I have one in .357, and absolutely love it. Unless you're dead set on getting a 44, I'd look hard at the .357. They're a lot cheaper to shoot, generally more acturate, and are quite capable of taking a deer out to 100 yards.