Another early decision I need to make as I begin model railroading:
  Is the Dynamis Wireless infrared DCC System  (item # 36505) a simple alternative to the 10-button EZ Command DCC System (44902)? 
  Or do I need to have some form of powerpack or DCC system in place that I add the Dynamis gizmo to?
  In other words, can I buy the 36505 instead of the 44902?  Or do I need to buy both?
  Anybody want to offer an opinion on whether or in what circumstances the Dynamis system is worth the extra money?  I don't have much of a layout now, but I have visions of grandeur to build something complex over the next few years.
  Thanks!

I'm new to model railroading and trying to decide which train set to buy first. I'm looking at the 2008 Bachmann catalog.  I'm trying to understand the difference between the Spectrum Frontiersman set (item # 01302, list price $325) versus the Steam Digital Commander (00502, $245). 
    What is it that justifies the higher price for the Frontiersman, which has the simpler powerpack? The Steam Dig Cdr has the 10-button powerpack, which would seem to be the more valuable option.  Is it primarily an issue of a higher quality locomotive?  Both are marked DCC on Board and nickel-silver EZ Track.
  Thanks!