When I first went DCC I did a cost/benefit analysis of existing systems at the time (2004.) EZ Command at the time came with a locomotive and was around $100, half the cost of the Digitrax Zephyr I ended up purchasing. It has since gone up in price to be only slightly cheaper than a new Zephyr. Dynamis seemed to me to be significantly more expensive than the other systems, which is why I didn't get one. At the time, I bought a DCC OnBOard locomotive for my son to run. I was impressed enough with it to take a second look at the rest of Bachmann's offerings. I was pleasantly surprised to find that they were at least as good as the Athearns I already had, and much easier to convert to DCC. While I don't have an exact number, I now own approximately 50 Bachmann locomotives.