no. there are a lot of non-fiscal benefits to roommate/housemates. splitting household chores, sharing meals, covering each other's responsibilities during trips out of town, and even though you don't need to do it for financial reasons, the further reduction in living costs is awesome. almost all of the benefits are contingent on getting along with the person, which contributes to the uncertainty if its a stranger or whatever.

i've lived in a handful of different configurations, and the one i look back on with the most fondness is having 3 roommates in an older larger place with multiple common area hangout spots, in a walkable part of a city and we all got along/were friends. we all disliked our jobs, but we all liked coming home, hanging out, taking walks, and playing games with each other. it was like a sitcom. everybody had to move away from each other for professional opportunities after a year, unfortunately.