Many other VCs that have survived for that long have a huge IPO under their belt, like Google or Uber. The best in the YC portfolio are probably Stripe, Dropbox, and Coinbase. These are great companies and great exits, but don't support 1000+ $0 failures. They do deliver the goods if your failures have a ~0% return rather than a -100% return.
That is a good thing for you if you want to learn how to grow a company, though, because it is a great sign that YC actually works as an education opportunity.