It’s a 67 year old novelty then. (Not counting early experiments before the 1950’s.) I’m still waiting for talking pictures to go away. This sound gimmick is a flash in the pan I tells ya! 😛
And it’s not the format’s fault the market is being flooded with bad post conversions, (the good ones are few and far between) theaters where the gear is being maintained by the snack bar guy, and filmmakers who are too timid to take full advantage of the technology.