Yes. Before Magic Johnson (carrying the ball), Patrick Ewing (traveling) and Allen Iverson (jump stop) killed the observance of basic game rules and the NBA didn't fix the outcome of most games ala pro wrestling, the NBA was an interesting and watchable sport.
From 1970-1990 the Milwaukee Bucks were consistently among the NBA's best teams - qualifying for the playoffs 19 times, winning a dozen division titles, reaching the conference finals a half dozen times, reaching the Finals in 1974 and winning the championship in 1971.
I haven't watched much over the last 25 years because I detest the game pro basketball has become, but I've heard that the Bucks actually made the now-diluted playoffs a few times.