I haven't watched it regularly. I started watching when the Sacramento had the rivalry with LA, and decided to support Sacramento cause they were the underdogs. Then Sacramento became shit, while in addition, the TV that year didn't show matches in my country. Then the next year, I liked mostly Houston because of T-Mac, but didn't watch them regularly. Later it was LA because of Gasol.How come?
When you don't watch a league regularly it is hard to have a team that you support. And it is hard to stay until 5am 3 times per week to watch teams, let alone teams that are a bit shit (like Sacramento).
So now in NBA, I watch with the same mindset as European Leagues bar EPL. I don't support any team in Spain, Italy or Germany, but I like to watch Atletico, Roma and BVB when I have time. Same about NBA. Watching Curry for example is a joy.