I gotta disagree here. For me, I do not want to become a 1-done school. I also do not think that having a 1-done system brings that many more championships. Plus, I just don't like it. Sorry, irrational, but just opinion.
Not actually irrational.
It's been interesting to see the evolution of Kentucky. Cal started out gangbusters. Elite 8 followed by 4 out of 5 seasons with a FF appearance. In the four seasons since then he has no FFs.
I really think the luster is tarnishing on his program right now. It's become less automatic for the top 10 guys to take his offer. Perhaps it's playing time? Regardless, there was a run in those first 6 years that hasn't been matched in the last five.
I think you definitely need a core of top caliber guys staying 3 and 4 years. Adding a one and done occasionally is good, but there's no certainty they're going be blend well.
As to the how it feels personally, which I implied from your post, I agree. It's fun to see guys develop and play over time. We're probably pretty typical of college fans. You've got to imagine that Marvin Williams and Corey Magette get less love from their fanbases than Raymond Felton and Jon Scheyer, as examples.