Many of the major appliances are not used in the RV industry but also in the residential industry here and in countries that have limit power grids. We have adopted the use of these in our industry as a result and so I doubt seriously that the manufacturers' success is dependent on the sale of RVs.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7