Stan raised an interesting question: "does changing increase the net income more than the cost of changing"? If the answer is yes, I would say go for the D800. I have used it in the studio quite a bit and I can say it is a phenomenal camera. However, there a couple of cons to consider. First, the large files came be a pain in the the rear if you don't have the PC/MAC to run it. Secondly, Those 36mps will reveal every imperfection on a individual's face and will require a lot of time to correct. Many can and would argue that the D800/e is too much camera for portraiture work but if that is the case, why does Peter Hurley use medium format regularly for his portraiture work? If you believe the D800 is the tool that can give you an edge, go for it.