Before getting into this topic, let me be clear that you can run your trains any way you want. I'm a firm believer in the "my railroad, my rules" philosophy in the hobby. Many people are content with analog DC systems, others prefer battery power and remote control (just ask garden railroad owners). But for the N scale and HO scale enthusiasts, I highly recommend checking out Digital Command Control. Not only does it allow multiple units to run on the same track in different speeds and directions, but there are several other advantages as well which make DCC a superior control system to analog DC blocks. Here are three distinct advantages DCC gives operators: 1). Simplified wiring. DC block wiring requires careful planning as well as an array of switches, lights, and power supplies in order to keep trains running smoothly. Even then, the control system requires manual input to ensure that two trains don't end up in the same block. Bascially, D...