Louisville had about 20 years of irrelevance since their title in 1986.
And Kentucky's just bouncing back from 4 years of mediocrity. If you only live in the here and now, fine, but let's not skip over things that happened during our life time.
That's also discounting the socio-economic fuckery that is the UNC Duke debacle.
Are we not living in the here and now? Is what happened in the early 90s important but the 80s aren't? Because what reason? The early 90s was the height of the UNC/Duke rivalry, and not surprisingly, was a time when one followed the other with a championship. Since then UNC went 12 years without one and, if we are being honest, suffered a good deal of mediocrity of their own.
From my perspective I stopped caring about the UNC/Duke rivalry years ago because it is meaningless to me and the game occurs far too often. Far, far, too often. If you don't like the outcome, wait two weeks, they play again. Just isn't special. Again, I am aware there is a fare bit of casual interest in it nationally, mostly because that's what ESPN feeds people, but the interest is casual.
I have no fucking clue about whatever socio-economic issue you're talking about and neither does anyone else outside the triangle. That's their thing and is completely irrelevant on a national scale. I could bring up any number of justifications for the UK/UL rivalry that would be equally useless for you.
But I don't know that I'd say it's the greatest rivalry in college basketball. It's up there though.