I think everybody seems to copy or "develop" further, most products in this industry, yes, I agree a lot are over priced, but just because a company really pushes their advertising, it does not force anyone to buy their product and at the end of the day each angler makes up their own mind what to buy, and if they choose to buy based on that advertising then is that not the whole point of advertising and therefore a sound business strategy.
i think this whole "cloud" effect round boilies/baits will be introduced by more companies, i believe Sonubaits or Avid do a similar "Cloud Booster" range similar to this also.