I don't think most of us would care too much about the composition of our teams (1 and dones vs. 4-year seniors), so long as we're contenders every year.
Kentucky has shown the 1-and-done model can be successful, with the occasional hiccup.
What I don't want to turn into is a program like Wisconsin, with (traditionally) a bunch of under-talented 4-year guys who play well as a team, but never win anything. Sure, they can talk about character and commitment, but they can't talk about championships.