"What do you consider a commercial success, then?" A commercial success to me is the ability to live comfortably off of the business (and quit your day job).

"What do you consider a commercial success, then?" A commercial success to me is the ability to live comfortably off of the business (and quit your day job). I suppose Patrick has quit his day job for $30K/year, which I think will make it difficult to survive without savings. (even in Japan).