> Someone has to decide what "sustainable" means, and it is best that the person who decides is the one who stumped up the money. If you have no investor and

> Someone has to decide what "sustainable" means, and it is best that the person who decides is the one who stumped up the money. If you have no investor and the company has grown organically from the initial founding, the only people that stumped up money are the owners or, in a more cooperatively organized company, the people that took less wage to allow for investment in growth. Taking on investment relinquishes control over various features of your company, for example on the desired definition of "sustainable". In that regard, investors are a liability.