I've always wondered how rewarding it is to run a business by being the visionary or being the pragmatists. It takes a little of both I think.
I had a small mail-order business once. I always was working. If I wasn't in my shop, my mind was there. I slept in my warehouse. My diet was poor. No toys. But was it worth it, yes. And, once you do it, it get's in your blood and you'll want to do it again. At least that's my experience.
You need to find a niche to give you an edge. No one's going to buy your widget if there are other competitors making the same thing. Low prices can keep you poor. High prices means high quality which is high expense.
I suggest that you ask people online who they are buying their bullets from and what that company lacks. Get a list of them and find the right niche product to add to your widget list. People who buy your niche product will probably buy your product too if the quality and price is about the same. Your competitors won't be able to react quickly because their production is tied down to current expenses. Few would have a lot of extra cash laying around to invest. And, if so, most will be conservative about the choice. Making the wrong financial investment is very damaging to a business. Those few cents that added up to dollars over a length of time is damaging financially and spiritually. Heck, you worked a lot of hours squirreling away that money. Move fast, work hard, listen to wise advice, and make the best choice you can. At worse, you'll crash, get back up, and be even better the next time.