I think the funding opportunities were the determining factor in the last "golden age".
Living the Dream fund, RTCs, the development of different media coverage making sponsorships and youth camps more profitable - All things that made the business end possible for our professional athletes. We can't know how well some of our guys would have done after their single Olympic cycle post college. I'm just happy to be decades past reading about it in a printed magazine.
The future sure looks bright! It'll be interesting to see how the next generation navigates all the new opportunities. I'm aware of being old fashioned when it comes to loyalty. I could make an argument correlating loyalty to success, but I'm not invested in defending it. There is something to be said of the college years, though. JB was loyal to Nebraska and Manning. DT to PSU and Cael. Dake to Cornell and Snyder to tOSU, at least for those formative years. And, when those guys did move around, it didn't always correlate to more success, although that could have been more an issue of age - Perhaps with the exception of Dake who...well, never mind.
Anyway, I'm curious to see how the young guys navigate these formative years in the age of NIL. I'll never argue against free markets....But, I have experience with 20yr-olds and their cognitive development that makes me cautious about seeing them chase money around. I hope they can develop into men that win Senior titles, and I suspect that it will depend on their investment in the programs they end up in.