You don't need to spend 6 months on building anything new to validate this. Creating design mockups of another variation that has a white sleek look will be enough to canvas opinions.

It is fairly inexpensive to run a test via google consumer surveys or similar to hit a large chunk of your target demographic with a "which would you buy" type question.

I wouldn't worry about getting it into stores for now. If you success in building a quality product that the market wants you won't struggle for a sales platform.