My observations were based on my experience and things I have learned to look for from this brilliant forum and tips at the B4 rally. Folks have gone to great lengths to advise others to look for the RV that suits their particular needs... and budget. When you buy used, as I did on my Great West Van, you buy "as is", features, layout, wear and tear, but of course you save money.
You can pay some companies to totally customize a new RV or buy an available new unit like the ones at the show, with the greatest # of pluses and fewest minuses.
I find the shows to be enlightening and the "what will they come up with next" qualities can be fascinating. And RVers in general are quite the friendly lot. I know they have been kind to us in some situations where we needed help.
Maybe one of our RV historians can educate us on the history how the the "B" companies evolved in Canada for the most part the most other types came out of Indiana and the USA. I really don't know.