What happened to beehive springs?

Three or four years ago beehive springs were all the rage. I know they are more of a chebby thing, but I dont even see them much in other, lesser mags.

I havent been able to follow the engine building scene as much as I would like and sorta missed the whole beehive spring thing right after it had started.

So was there too many disadvantages or something?

Just curious. I kinda liked the idea of reducing retainer weight and was thinking about trying some on a 318 street build.

Thanks.