I may be wrong but unlike Gullivers Gate, in New York, I believe the Northlandz original owner owned the building the layout is in. So if the new owners bought the building along with it's contents, maybe there's a better chance that they will succeed in their efforts.
They also need to reach a larger audience. Roadside America was well known in it's day and still is recognized by alot of people. Granted, RA got it's start own the heyday of toy trains.