Very good points d4nt, 1. The unmentionable (elephant in the room) to investment is that typical Investors tend to look for 10x payback, that orients all future business decisions. Getting outside capital has one value in my mind, enables capturing a market quickly that has the potential to scale up fast and has a high ceiling. I too am working on bootstrapping while in another job (In an Enterprise B2B play), I'm 55yrs, my first customer is in negotiation with me, a Fortune 50 company) and this is pre-product. My plan is to fund via Customer investment... 2. My network has also been great. Need to talk with 4-5 Fortune 50 companies? Found them in my LinkedIn network. 3. Totally agree here, life is more than work, as much as you may love it. Ryan Carsons Blogs is excellent, and he's a very balanced person and build a great company (http://ryancarson.com/about). Some great tips about work life balance and focus. 3. Energy is about passion, not physical endurance!!