Great article by Mitt Tarasowski. However, an important component of Trello’s business model that he did not address in the post — that aspiring entrepreneurs need to take very seriously — is that Trello was incubated by an agency, Fog Creek Software. This allowed them to pay their staff with consulting revenue and build Trello in their free time. Without that consulting revenue, Trello would have had to survive those early years on either customer money or investor money. Customers didn’t pay enough for many many years to support the staff, and investors tend to say things like, “Isn’t this just JIRA?” The big players in this space Atlassian (makers of JIRA), Trello, Basecamp followed the same agency incubation model. The one exception is Asana, and well, if you are Dustin Moskovitz, the co-founder of Facebook, investors are happy to give you some money and see what you come up with.