There is success and failure in every industry and every market. No Idea is a failure or success. I would evaluate the person responsible for launching said idea instead of the idea itself.

An Idea is but a seed, you have to first find a farmer that specialize in growing that crop, then the farmer will let you know if the seed is damaged, or if it is the right time for planting.

So the short answer is to bring your idea to a farmer.