It's probably not a common thing, but I could see if there was a person who has become a big fan of MTH (who was not in the hobby back then to have purchased such a set when originally issued) who wanted to acquire an "early" item (it's been quite some time since that graphic style has been used), there could be interest.
It's impossible to say what someone would pay (though checking eBay "completed" listings can help), but there may be some small number of people interested in owning such a set.
As others have said, for the pure nature of the train itself and the older technology, you will likely not find too many interested parties.
-Dave
