There are a lot of folks that really drink the Koolaide. Worm weight, flipping weights. Really?
It's not Koolaide. They are shaped differently and made differently. The worm weight is more long and narrow to keep in line with worms. Flipping weight is more short and compact. Also has a larger throat to accomodate pegs and such. Also flipping weights are better when fishing rocks than worm weights IMO.
They shouldn't cost you any different but definitely have a purpose.