Well, yes, you should avoid raising money unless:
(x) you need it or
(y) it’s dirt cheap.
Look at Dell. Notwithstanding its current market challenges, Michael Dell himself still owns 80% of Dell worth $18.5 billion (see Dell Gets Bigger and Hewlett Packard Gets Smaller in Separate Deals). Atlassian never required any outside capital (wow) other than selling secondary shares later at a high valuation. Qualtrics did the same. 37 Signals, etc. Awesome.
But …