Good reply Kevin, and you did it professionally. It's pretty sad that so many people in the business of model trains have no idea what RailPro is. Even the manufacturers have no clue as to how it works. I have spoken with reps at Bachmann, Athearn MTH and BLI, and none of them had a clue about RP. Many model railroaders, especially older ones, depend on hobby shops for information. Many of them have been die-hard DCC users for years. So how is the average guy supposed to know about RP if dealers and manufacturers don't? You can hardly blame them when there is little to no marketing being done.
All-in-all, I guess it's their loss, but it would be nice to be able to buy RP equipped locomotives the same way you buy DCC equipped locos, place them on the track and let 'em run.
Overtyped you Kevin. Edit: I think he meant they can charge for every upgrade or update if they so choose. This certainly has not been the case with RP.
Trainworld does carry RP products, but they don't advertise them.