As someone who has run a company for a decade, there are several meaningful inflection points:

* Becoming cash flow positive (aka Lift) is wonderful and stress relieving.

* Becoming profitable enough to start hiring lots of people and building a team culture marks a sea change in how you must think about your company and how you spend your time.

* Switching from growing to shrinking (albeit still profitable) changes the company culture, as everyone now feels like they're rats on a sinking ship. It's amazing how much people react to directional changes over absolute amounts (i.e., a company with $100K in annual revenue that doubled from last year is more positive than one with $20M that shrank by 20%).