Calling all Road Warrior owners - RWS, RWT, RWM

Well I think I am sold, It sounds like exactly what I need.

There are some 2008 with gasoline engines. Is there something to be said about the gas model being a better unit if it sits for month long periods? I have heard a diesel needs to be ran regularly so it doesn't gum up?

If anyone knows somebody that wants to get out of a RWT3400 let me know, I am on the east coast, and all of the RWTs I have seen are on the west coast!