A laundromat was just an example. There are plenty of urban places where the revenue is going to be fairly stable... Or maybe increase as housing overcrowding i

A laundromat was just an example. There are plenty of urban places where the revenue is going to be fairly stable... Or maybe increase as housing overcrowding increases due to limited apartment construction. I've lived in neighborhoods like this. But you could also consider other commodity businesses like vending machines, cleaning services, corner stores, etc.