As long as you dont need radio, and are willing to settle for tethered/IR you can get a Super Empire Builder set for $310, otherwise the Zephr at 177 is going to be the least expensive way of entering DCC. I run the Empire Builder on my set, and it works well. I wanted something that was going to be a little more expandable than the Zephr, but I'll never be running more than 4 or so operators at a time.