As Eric's co-founder, I'm encouraged he put this out there. We have regular conversations about staying focused and not letting the "what if" scenarios rule the tasks at hand. I think there is huge value in constrained resources early in the life of your startup and certainly one of the most scarce is time. This external time constraint has to focus our efforts for maximum ROI. Of course this constraint also keeps us agile as we don't have the luxury of excess anything.
An old, wise chicken restaurant founder (Truett Cathy) said in his book, Eat More Chicken, Inspire More People, (paraphrasing terribly) "Growing slowly allows you to grow into your success and your mistakes.". We still dream about success, about trend lines that go up (and they are), but focusing on the resources at hand to make that dream a reality has been our key to date. I'd love for everything to move faster from a growth perspective of course but keeping priorities straight means speed is exchanged for quality of life, agile and lean growth, and the unsung hero in the startup world, sanity.