A not-so-obvious excerpt I took away is this... >Before joining YC, I had been working on my startup for 6 months and a few of my customers were YC companies.

A not-so-obvious excerpt I took away is this... >Before joining YC, I had been working on my startup for 6 months and a few of my customers were YC companies. I think most people are aware that the startup market is quickly growing, and it is not what the author suggested by any means, but I think entire startups can be created to cater to the startup market...in fact YC is probably so large that a startup could probably succeed by catering solely to YC startups. For example, I applied to YC once with an incorporation/legal service idea, with the thought that even serving as a Delaware Registered Agent (~$100/year) and filing the Delaware annual compliance documents (~$100) on behalf of the YC companies - a captured market - would generate ~$100k/year, which is probably peanuts from a investors point of view, but a solid life style business that has the potential to cater to ever Delaware C-Corp startup. Its kind of like the 49er days and the old saying: "In a gold rush, some entrepreneurs dig for gold, and some sell shovels."