I have a 2" Model 60 from the same era. I still have the box. Can't say why I kept it because when I bought it I was not known for thinking in the future.
As far as collector's value, I'd doubt it. I know mine isn't. I used to carry it a lot.
With 158 grain +P loads, it is no fun to shoot. But I do carry the FBI load in it when I use it for self-defense, which is next to never. With standard .38 Special loads, recoil is noticeable. I could not imagine shooting a .357 Mag out of a "J" Frame.
If you're going to use it for self-defense, a wise investment is a sped loader. Practice loading it at night, under stress if possible.
Overall, I'd rate the Model 60 as an excellent gun. As far as self-defense, I'd rate it as less-than-marginal. It'll work if escape is not an option and a CNS hit is possible. It fails were one to have to confront more that one bad guy, which is more likely in urban areas where bangers roam.