Quote from RiceRocket:
Man, I don't know why people prefer trading with brokers that charge routing fees. But even if you do, it's a matter of a few cents here and there. If you have to penny pinch that bad, you need to develop a better trading style. Seriously, you can't survive in this business if your biggest problem is trying to decifer your commissions and routing fees.
seriously people who say that are fools. Coming up w/ a profitable trading model is hard enough. Figuring out the most optimal way to route an order is a piece of cake. And after adding up how much you'll save you w/ regard to how easy it is to figure out... you'd be a fool not to.