If this isn't an entertainment business, why not just sell up the ground and build houses on it, make it into something that could make money 365 days a year like a cinema, or bowling alley, maybe both, with some bars?
We as fans, owners, chairmen, players etc etc have forgotten that football exists because it is football, and when the fly-bi-nights leave it will be down to us fans that are left to pick up the pieces, with collection buckets, raffles, lotteries, fundraisers. We forget at our peril.