No continuity. That may be exactly why people like it. Every year in the NBA, it is Cavs-Warriors. As a Cavs fan, I like that. I can see why others don't. There's nothing in sports like March Madness. You can't have a bad game the entire tournament. You have to win at least 6 in a row to win the title. Any other sport require that?
Well, kinda...the NFL. Though that is 3-4 games, not 6. I think that's why Bill Parcells used to reference the playoffs in the NFL as the tournament.
However in college basketball, as was said above, you don't have to have an advanced degree in the NFL rulebook to understand what a catch, fumble, pass interference, or personal foul are. The NFL is killing itself practically every weekend with something new. While December college basketball isn't traditionally compelling, November is, and January to March has at least a dozen really good games a week.
For me, the NBA feels more like entertainment in the regular season, and less like sport. Its like basketball + MTV + reality TV, and it doesn't work for me. I can't bring myself to watch games until April unless it's a social setting. I'd rather watch regular season hockey or baseball over the NBA.
One of the things that grabs my attention with college hoops that I don't get with the NBA until games start to matter for the playoffs in April is the atmosphere at a game. On TV, the NBA has all the manufactured, and metallic sounding stuff from the PA system trying to get cheers going. It sounds awful on TV. College basketball, in maybe half the games played in a week, is simply better in the atmosphere department in my opinion.