IMO and my limited understanding of our new generation, it really isn't about the money. If one wants something, they will find a way - whether they buy brand new or used. They find a way. Especially since camping can be low cost (if one buys used, buys small and does yearly monthly budgeting for fuel / CG site fees).
Today, I noticed kids (my kids as first hand experience), don't want nature, they don't want to perform physical exercise and they don't want to rough it (which some people call camping - LOL!). They would rather hang out at a mall, have their face stuck in FaceBook, have some music player stuck in their ears, they take more focus in learning shorter words when texting and they worry more about "how they look" compared to the real world (that's around them). To them, being within nature isn't their thing. They'd rather be in the city, on a bus route (when they feel like taking the bus) or being a short distance ride to their kids place. Family / camping is very low on their want list...
For me, I cannot wait to "sell it all" and move to a lake side cottage. The only reason we go TT camping (at seasonal site) today is because RVing is my "get away" from work. My wife calls it our "get away from chaos" place. When I retire (another 8 years away), it all gets sold - to buy our dream cottage.
Long mumblings short... It isn't about the money (or lack of money). It's more about what interests the new generation - compared against "roughing it".