Y Combinator isn't just money. If you have a growing company with a vision, you can definitely find some investor interest. However, that should rarely be your goal, unless you flat-out just can't move your business forward otherwise. Y Combinator is what some would call _smart_ money: money that comes with a network of advisors, constant input and a nagging push to improve what you're doing. All of that combined can be worth more than the actual money.