I looked up these rifles a while back. My focus was on the .44 mag. I found that .44 mag practically matches the energy and accuracy of the 30-30 in a shorter cartridge, so more rounds in the tube, and a wider projectile, so more energy deposit.Marlin is a high quality firearm so no concerns on that issue.
The .357 mag is a handgun round as is the .44 mag. You have a less powerful round in the .357 mag when compared to the .44 mag.
The .30-30 is a rifle round and will, in my opiniion, outperform either of the handgun rounds in a rifle.
A little time spent checking out the ballistics of each round will give you a more detailed basis for comparison.
The value of this rifle has a lot to do with where you live. I live in the Texas Panhandle where distance rules so a handgun round in a rifle is not really such an asset. I rather doubt you could find a buyer for this rifle at that price in my area.
However, this is a forum so I expect other views.
YEA! That's what I was trying to say.The .357 Magnum, although close using Buffalo Bore ammo, cannot match the .30-30 in terms of energy, velocity or trajectory. The .44 Magnum is a different story, but it still has a shorter range than the .30-30. The 7.62x39mm mentioned is closer to the .30 Herrett, (almost identical case capacity in fact), than the .30-30 and falls short with bullets of 150gr and up.
The Marlin is an excellent lever-action but both the .357 and .44 should be limited to 100 yards or the shooters's ability; whichever is closer. With most loads, the .30-30 can reach out to 150 yards with no problems; some can go farther and be effective.