I bet the ones in charge of the WT purse strings had plenty of long, heated arguments about purchasing this hotel.
Or, a long term purpose was rationalized for the purchase that justified the outlay of money - perhaps a place for WT branch representatives from around the world to be housed when visiting the 'world headquarters'...or the Society sees the income potential of owning a nearby hotel during assembly weekends.
If an experiment of this sort works, maybe it will be applied to many town that have JW owned assembly halls.
ginger