Kevin Kelly has written a riff about being able to make a good living off of 1000 true fans.

Other than aim for a blockbuster hit, what can an artist do to escape the long tail?

One solution is to find 1,000 True Fans. While some artists have discovered this path without calling it that, I think it is worth trying to formalize. The gist of 1,000 True Fans can be stated simply:

A creator, such as an artist, musician, photographer, craftsperson, performer, animator, designer, videomaker, or author - in other words, anyone producing works of art - needs to acquire only 1,000 True Fans to make a living.

A True Fan is defined as someone who will purchase anything and everything you produce. They will drive 200 miles to see you sing. They will buy the super deluxe re-issued hi-res box set of your stuff even though they have the low-res version. They have a Google Alert set for your name. They bookmark the eBay page where your out-of-print editions show up. They come to your openings. They have you sign their copies. They buy the t-shirt, and the mug, and the hat. They can't wait till you issue your next work. They are true fans.
Now the post is very focussed on people who earn their money by writing, singing, etc. but I think that the concept can be applied to any company.

Think about it, if you had 1000 people who always came to you, who always bought all your stuff, who raved about you to other people, wouldn't that at least pay the bills (and probably a lot more)?