I think the value and prestige of being a YC company can only grow from here. Reason being is not for the hype aspect, but rather the education and attention you know the company received. People who really understand this industry expect quality. With 1000+ companies under their wing, it's assumed that after years of experience the YC team will have developed an excellent picture of the ideal startup/company and be able to impart that knowledge to the startups they've selected.
