Amazon has a 9% price advantage over SPLS and other brick and mortar retailers, because Amazon customers don't pay a sales tax. Write Washington to help your SPLS investment. Google "your representative" and "your senator" to get the right address. Then ask that they support the Market Place Fairness Act (reps.) and the Market Place Equity Act (sens.)
Our political system works only if you get these people in D.C. off their butts.