Bootstrapping is for fools. Virtually no founders out there are pouring their personal savings into their company. The issues with bootstrapping:
1) No one to tell you to give up except your own survival instinct. 2) You've already told yourself to ignore that survival instinct because of the success stories you've heard. 3) Even if your idea is fantastic, there is another group of folks out there who have raised enough money to pay themselves working on the same thing. You are now under-resourced and already losing.
I about 90% regret bootstrapping my first, failed startup. The other 10% I managed to make into a great opportunity to learn a lot and expand my network but I suppose I could have done that much more cheaply.