> but online businesses have nearly no start up cost at all.
Oh, my. Advertising, wages, travel, laptops or computers, and public facing online services rack up very quickly. Even without travel, most online startups _fail_. That day of "once you have made a profit" is fairly rare for startups.
Without specialized tools or services, which may be all software but cost time and money to develop, most startups have nothing to distinguish them from dozens of other startups with the same "paradigm shift" bright idea.