By far the biggest thing NXT had going for it was the studio feel/style/pacing. It was an hour a week with big shows four or five times a year. They could tape a bunch of shows at once. They had squash matches. Characters were built. They were kept fresh and interesting. They occasionally put on matches where both guys really needed to win and sometimes it hurt a talent but those were usually not the guys who were long for the company anyway (Corbin vs Bull James comes to mind). In general, people were more protected by the sheer fact that they didn't need to draw and they didn't need to show success. There was no pressure to deliver immediately and manage the wear and tear of weekly live multi-hour TV and that let them actually develop a product and wrestlers that were worth something. Those first few tours felt absolutely special, in part because you'd get something at the live show that you couldn't get on TV, whether it be a unique version of a match-up that had only aired once or twice on TV ever or something special like Finn and Bayley singing. You saw something like that and it felt like you were part of a special club. It could have likely lasted but they didn't continue to offer that and capitalize on it and they, not unlike OVW all those years ago, got fleeced by the main roster again and again over time. There were still special things like getting to actually see Nak or Asuka or getting to sing GLORIOUS along with the rest of the crowd, but the returns began to diminish.