Defining Entrepreneurial Success

Just how do you define success for an entrepreneur? Is it a round of funding? Is it certain revenue/earnings? Is is purely product milestone based?

The interesting part is an offshoot from another conversation which identifies the joys of entrepreneurship with just being in it. The adrenaline rush for small daily successes, and the little panics that set off when things don't go your way- these make up for the key moments that you live as an entrepreneur.

If the journey is so beautiful, does the destination matter?