This is weird because... I've noticed the opposite. Often markets are way bigger than you think; or rather, 1000 users for a product seems small but is actually

This is weird because... I've noticed the opposite. Often markets are way bigger than you think; or rather, 1000 users for a product seems small but is actually quite a decent size depending on how much effort has been put in. What it comes down to is being content that you will not always make a billion dollar product. With that in mind, a big market has many definitions. Maybe you should have paid attention to the emotional aspect.