Trying to find businesses with low startup costs is tough enough, so when you find one that is 100% free you jump at it with both feet.
The best businesses with low startup cost are not always the best businesses. They will tell you that it is low cost, but hidden costs build up until it is not low cost anymore.
The best option is to find is a business with no startup cost, in fact no cost at all. Putting more money into your pocket.