Gene, as for Monaco creating upward pricing of the R-Vision line, it has gotta help, especially if some new ideas flow from Monaco to TL lineup. I was surprised that there is still a Class A lineup by R-Vision (as shown at the website you linked) since Monaco already covers that area.
On a somewhat related note, look at this picture...
http://www.campingworld.com/rvs/vehicleDetail.cfm/a-d/tc-36261/vid-189809/
Even if I were not legally blind, no one could blame me for mistaking the Four Winds Siesta 21BC for my TL 213 in a parking lot. Even if I entered the wrong vehicle, I would have to think for a while before realizing the mistake! Note the price is comparable to similar TL models.