Obsessive rolling provides a nice touchstone to the original, so I think it should be an option for nostalgia, if nothing else.
I know you are kidding, but in case you are not - I would say that Nostalgia is much like Sentimentality in that it is the domain of sociopaths and not a good reason to do anything.
If we view existence karmically, as a series of attachments to be shed, then Nostalgia would be at the top of the list of negative attachments.
