I'll probably get flamed for this but this is what I posted over on the other site:
I've spent over 30 years in product development/engineering and although it seems unfair this is just normal product life cycle. When you first introduce something new and innovative profits and margins are high (at least they should be). Eventually competition comes on board followed by price erosion as each tries to maintain/gain market share. The best way to survive is to find lower cost ways to manufacture the product to help maintain margins. That and moving on to the next great new idea which starts the cycle all over again. In essence this is what you did when you introduced your geometric version. No one can expect to have a market all to themselves forever. Sooner or later someone notices your success and wants a share.
I know this is not what you are wanting to hear but this has been my experience/observation.
Don
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