You never know. All you need is something someone else cant do or get and you can make money. I have a motorcycle tail light business that I make pretty good money at, and its not hard for me, but some people cant solder, and have no idea what a resistor is, so they buy mine.
It may be worth it to make up a small scale prototype and see what you can get for it. I have expanded mine from 1 light to 5 different models and will be adding more in the near future.