I would bet that as much as 90% of new buyers would list price as their number one factor in making a decision over which rig to buy. We start out with how much we want to spend, NOT how much quality we're looking for. Once we determine what our budget is, then we decide what we're willing to compromise on to stay within that budget. And the less informed we are, the less "quality" we purchase.
Someone who is uninformed may buy a bigger/newer coach over a smaller/older coach that falls within the same price range, even through the smaller/older coach may be a much higher quality unit.
Does it work that way for everyone, no...but that's the majority of people I run into at campgrounds and at work, etc.
For too many, it's an impulse buy as opposed to the people that take the time to do research (usually here). They go to a show, or stop by the local RV dealer when they're in a good mood, and that afternoon they sign papers as happy new RV owners.
Does that mean the entire industry caters to them? Not at all.
People here know that there are higher quality rigs and lower quality rigs. That's the way the system works. You can't expect every manufacturer to build Prevost quality coaches at Yugo prices. And there is obviously a market for Yugo-priced rigs