I'm going to be the devils advocate here. Keep in mind I totally get how frustrating all this is. But from a manufacturer's viewpoint, it's really difficult to invest tens thousands of dollars into product development and marketing for a product that only a very small segment of the population will want to purchase, much less actually purchase. Usually it will create a loss.

This is why you will be more likely to find need/niche specific products from small, independently owned small and web businesses. Some people view this as an opportunity to develop and create a product, and then market the hell out of it.