There are too many of us that are getting world class performance with the Mini and Pro and other DACs.
I wandered around RMAF for a couple of days recently and heard a few rooms that had systems in them the cost of which could otherwise buy a house or put someone through college. The best of them used all matter of front ends, including digital. In fact, my vote for best sound would probably come down to three, and in that group is a room using a MacMini source (with SSD - actually it was modded by a company called Mach2Music, which were in more than one room - I have no knowledge of what else they do to the Mini but you can google it and find out) - the Empirical Audio / YG Acoustics room: Just a beautifully sorted out system and the sound, throughout several cuts of diverse music on more than one occasion, was spot-on. Nothing to flaw, and I did not want to get up and leave. There were many rooms that had me leaving after a brief listen as well.
I'm very happy with the sound from my digital front end. Don't know if it's "world class" but it certainly sounds great to me. Haven't had the experience of CD players surpassing the sound, and have done a bit of comparisons, though not enough to write home about. The better vinyl rigs would probably take my vote, but I don't think the gap is such a chasm as many make it out to be. I guess it depends on the individual. I don't miss vinyl.