Investing in a Delta Dinner is the single best investment you can make. It will help you better leverage opportunities, overcome obstacles, and open doors you didn’t even know existed. Most solo-biz owners don’t invest in their network because they can’t peg an immediate ROI to it. And yet, no investment is ever 100% guaranteed. Any time you invest in marketing, a new website, a new employee, etc… you’re taking a leap of faith.